Cosmetic compositions containing water-soluble polymer complexes

ABSTRACT

A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second water-soluble polymer formed by polymerizing one or more water-soluble monomers in the presence of the first water-soluble polymer. The water-soluble interjacent complex is characterized in that it forms a solution in water that is free of insoluble polymer particles. The water-soluble interjacent complex is used in a method of treating a keratin based substrate, whereby a cosmetically acceptable medium is applied to the substrate and contains from 0.1-20% by weight of the water-soluble interjacent complex.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional PatentApplication Ser. No. 60/284,043, filed Apr. 16, 2001, and entitled“Water Soluble Polymer Complexes,” which is herein incorporated byreference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to novel cosmetically acceptablecompositions containing a cosmetically acceptable medium that includespolymer compositions and methods for treating keratin. The cosmeticallyacceptable medium can be a hair or skin care product, such as a shampoo,conditioner, shower gel, bar soap, styling product, or rinse, or a skincare product, such as a cleanser, lotion, or cream.

2. Brief Description of the Prior Art

The surface properties of keratin are of interest in cosmetic science,and there has been a long-standing desire to discover ingredients, whichwill beneficially affect the topical and bulk condition of keratinoussubstrates, such as hair and skin. For example, such ingredients musthave adequate adherent properties, so that they are not only adsorbedinitially, but are also retained on exposure to water. This property isreferred to as “substantivity,” i.e., the ability of a material to beadsorbed onto keratin and to resist removal by water rinse-off.

Hair is composed of keratin, a sulfur-containing fibrous protein. Theisoelectric point of keratin, and more specifically of hair, isgenerally in the pH range of 3.2-4.0. Therefore, at the pH of a typicalshampoo, hair carries a net negative charge. Consequently, cationicpolymers have long been used as conditioners in shampoo formulations, oras a separate treatment, in order to improve the wet and dry combabilityof the hair. The substantivity of the cationic polymers for negativelycharged hair along with film formation facilitates detangling during wethair combing and a reduction in static flyaway during dry hair combing.Cationic polymers generally also impart softness and suppleness to hair.

When cationic polymers are added to shampoos (or to skin care products,such as cleaning compositions) containing anionic surfactants, formationof highly surface active association complexes generally takes place,which imparts improved foam stability to the shampoo. Maximum surfaceactivity and foam stability, or lather, are achieved at nearstoichiometric ratios of anionic surfactant: cationic polymer, where thecomplex is least water-soluble. Generally, cationic conditioners exhibitsome incompatibility at these ratios. Compatibility gives a commerciallymore desirable clear formulation, while incompatibility leads to a hazeor precipitation, which is aesthetically less desirable in someformulations.

Hair fixative properties, such as curl retention, are believed to bedirectly related to film-forming properties of cationic polymers, aswell as to molecular weight, with performance generally increasing withincreasing molecular weight. However, the fixative properties conferredby cationic polymers generally tend to have a reciprocal relationship toother conditioning properties, i.e., good curl retention usually meansthat properties, such as wet compatibility, will suffer, and vice versa.

Keratin conditioning additives generally are of three primary types:cationic polymers, proteins or protein derivatives, and fatty quaternaryammonium compounds. Commonly used cationic polymers include: quaternarynitrogen-containing hydroxyethyl cellulose compounds, copolymers ofvinylpyrrolidone and dimethylamino-ethylmethacrylate, and aminofunctional polydimethyl-siloxane. Hydrolyzed animal protein has beenfrequently used as a keratin conditioner. Also used are naturalproducts, such as collagen and casein. Suitable quaternary ammoniumcompounds include such products as stearyl dimethyl ammonium chloride.

Generally, two broad areas of skin care products have been recognized asskin conditioners: emollients and humectants. Emollients generallyprovide improved moisture retention in the skin andplasticization/softening of the skin. Common commercial emollients aremineral oil; petrolatum; aliphatic alcohols, such as stearyl alcohol;lanolin and its derivatives; glycol stearate; and fatty acids, such astriethanolamine oleate. Humectants generally attract moisture, retardevaporation of water from the skin surface, and plasticize/soften skin.Common commercial humectants include glycerin, propylene glycol,sorbitols, and polyethylene glycols.

A desirable skin conditioner should impart at least some of theattributes of an emollient or a humectant, as well as provide improvedlubricity and feel to the skin after treatment and/or reduce skinirritation caused by other components in the conditioner, such as, forexample, soaps, detergents, foam boosters, surfactants, and perfumes. Itis known by those skilled in the art that cationic polymers may beemployed as skin and nail conditioners.

At times, it is also desirable that the ingredients of skin and nailcare products have adequate adherent properties, so that they are notonly adsorbed initially, but are also retained on exposure to water.This property, as in hair care applications, is referred to as“substantivity,” i.e., the ability of a material contacted with thekeratin of skin or nails to resist removal by water rinse-off.Generally, pH's typical of use conditions, skin, and nails carry a netnegative charge. Consequently, cationic polymers have long been used asconditioners in nail and skin care formulations. The substantivity ofthe cationic polymers for negatively charged skin and nails leads tofilm formation that facilitates lubricity, moisturizing, and feel.

The skin and nail conditioning properties of lubricity, moisturizing,and feel, are related to the film-forming properties of the cationicpolymers, as well as to molecular weight, with performance generallyincreasing with increasing molecular weight.

Conditioning additives comprising copolymers of dimethyldiallylammoniumchloride and other monomers are well known; see, e.g., European PatentNo. EP 308189 to Jordan et al. (with acrylamide), European Patent No. EP0 308 190 to Winkler et al., and U.S. Pat. No. 4,803,071 to lovine etal. (with hydroxyethyl cellulose). Amphoteric betaines have also beenemployed in cosmetic compositions; see Great Britain Patent No. GB2,113,245 to Grollier et al., which discloses use of betainizeddialkylaminoalkyl(meth)acrylate together with a cationic polymer.

The use of polymers of diallyldimethylammonium chloride (DADMAC) in thetreatment of keratin is also known. See, e.g., U.S. Pat. No. 4,175,572to Hsiung et al. and U.S. Pat No. 3,986,825 to Sokol. U.S. Pat. No.5,296,218 to Chen et al. discloses DADMAC-based ampholyte terpolymerscontaining acrylamide for hair care applications, while U.S. Pat. No.5,275,809 to Chen et al. discloses DADMAC-based ampholyte terpolymerscontaining acrylamidomethylpropyl sulfonic acid for hair care uses.

U.S. Pat. No. 4,923,694 to Shih et al. discloses copolymers of vinylpyrrolidone and (meth)acrylic cationic monomers that are useful fortreating hair. These polymers are able to provide good hair stylingproperties at low concentrations of cationic monomer, but providelimited substantivity due to their relatively low cationic chargedensity. When the cationic charge density is increased, the polymersdisclosed by Shih et al. become difficult to formulate with due to theirdecreasing compatibility with anionic surfactants.

U.S. Pat. No. 5,609,862 to Chen et al. discloses hair conditioningpolymers comprised of acrylamide, acrylic acid, and a cationic monomer.The conditioning polymers disclosed by Chen et al. are very compatiblewith anionic surfactants but demonstrate poor compatibility withamphoteric and cationic surfactants. Further, the conditioning polymersof Chen et al. provide poor hair styling properties and only minorconditioning benefit to hair.

U.S. Pat. Nos. 5,879,670 and 6,066,315 to Melby et al. discloseconditioning polymers that include acrylic acid oracrylamidomethylpropanesulfonic acid monomers, (meth) acrylamidopropyltrimethyl ammonium chloride cationic monomers, and (meth)acrylate esternonionic monomers. The conditioning polymers of Melby et al. aredifficult to formulate at low pH and do not provide good hair stylingproperties.

U.S. Pat. No. 6,110,451 to Matz et al. discloses synergisticcombinations of cationic and ampholytic polymers for cleansing and/orconditioning keratin based substrates. The compositions disclosed areoften not stable, as strongly cationic polymers tend to form insolublepolymer-polymer complexes and cause the cleansing or conditioningformulation to become hazy, or the polymer-polymer complex precipitatesaltogether.

Interpenetrating polymer networks (IPN) are intimate combinations of twopolymers. The IPN can be in network form, where at least one polymer issynthesized in the immediate presence of the other. In an IPN, at leastone of the two polymers is crosslinked and the other may be a linearpolymer (not crosslinked). The term IPN has been variously used todescribe materials where the two polymers in the mixture are notnecessarily bound together, but the components are physicallyassociated.

U.S. Pat. No. 5,925,379 to Mandeville, III et al. discloses a method forremoving bile salts from a patient where a polymer network composition,which includes a cationic polymer is administered to the patient. Thepolymer network composition can include an interpenetrating polymernetwork, where each polymer within the network is crosslinked or aninterpenetrating polymer network, where at least one polymer within thenetwork is not crosslinked. Crosslinking the polymers renders thepolymers non-adsorbable and stable. The polymer network composition doesnot dissolve or otherwise decompose to form potentially harmfulbyproducts and remains substantially intact so that it can transportions out of the body following binding of bile acids.

U.S. Pat. No. 5,693,034 to Buscemi et al. discloses an angioplastycatheter that includes a composition coating on a distal end. Thecoating composition includes the reaction product of vinyl monomerspolymerized to form a crosslinked polymer that adheres to the surface ofthe device in the presence of an uncrosslinked, linear, water-soluble,hydrophilic hydrogel.

U.S. Pat. No. 5,644,049 to Giusti et al. discloses a biomaterial thatincludes an IPN. The IPN includes an acidic polysaccharide, such ashyaluronic acid and a non-toxic, non-carcinogenic synthetic polymer. Thesynthetic polymer may be crosslinked or grafted onto the acidicpolysaccharide. The crosslinking or grafting is achieved using compoundscapable of generating radicals or via functional groups on the acidicpolysaccharide and the synthetic chemical polymer.

As the IPN examples described above illustrate, an IPN includes at leastone crosslinked polymer with one or more other polymers, which may ormay not be crosslinked in intimate combination with each other. Whenwater-soluble polymers are included in the IPN, the resulting IPN iswater dispersible, but it does not dissolve in water. While the use ofan IPN may provide useful combinations of properties, its waterinsolubility can be a detriment in cosmetic compositions for treatingkeratin based substrates.

U.S. Pat. No. 4,028,290 to Reid discloses a complex mixture ofcrosslinked grafted polysaccharide and acrylamide copolymers that haveincreased water-absorbing and binding capacity. The copolymers areprepared by reacting a polysaccharide, such as cellulose or starch,acrylamide using a bisulfite-persulfate-ferrous ammonium sulfategrafting initiator.

U.S. Pat. No. 4,703,801 to Fry et al. discloses a graft polymer that hasa backbone derived from lignin, lignite, derivatized cellulose, orsynthetic polymers, such as polyvinyl alcohol, polyethylene oxide,polypropylene oxide and polyethyleneimine, and pendant grafted groupsthat include homopolymers and copolymers of2-acrylamido-2-methylpropanesulfonic acid, acrylonitrile,N,N-dimethylacrylamide, acrylic acid, N,N-dialkylaminoethylmethacrylate,and their salts. The graft copolymers are prepared by reacting thebackbone polymer with ceric salts and a persulfate-besulfite redoxsystem in the presence of the selected monomers. The graft copolymersare useful in cementing compositions for use in oil, gas, water andother well cementing operations and impart improved fluid losscapabilities.

U.S. Pat. No. 4,464,523 to Neigel et al. discloses graft copolymers ofcellulose derivatives and N,N-diallyl,N-N-dialkyl ammonium chlorides orbromides, prepared using a dry or substantially solvent-free system. Thepreparation includes impregnating a concentrated aqueous solution of theN,N-diallyl-N,N-dialkyl ammonium halide, water-soluble surfactant, andredox catalyst onto the dry cellulose substrate, heating the reactionmass for sufficient time to achieve polymerization and then drying.

As described above, graft copolymers of polysaccharide and cellulosicbackbone polymers are generally prepared by reacting portions of thebackbone polymer with a redox catalyst generally including a ceric orferrous salt to generate one or more free radicals. The free radicals onthe backbone polymer then react with the monomers that are present toliterally grow in graft polymer from the backbone polymer.

Graft copolymers differ from IPN's in that a first polymer acts as asubstrate onto which another polymer is added, or a site on the firstpolymer is involved in initiating polymerization to form a pendantpolymer arm. Graft copolymers can readily be formed from polysaccharideor cellulosic backbones using methods well known in the art. Examples ofsuch methods include the ceric salt redox method (U.S. Pat. No.3,770,673 to Slagl et al.) and graft initiation using formaldehyde andsodium metabisulfite (U.S. Pat. No. 4,105,605 to Cottrell et al.). Inorder to achieve a high degree of grafting, heavy metal ions, such ascerium IV or ferrous, or reagents, such as formaldehyde, are used toaugment the grafting reaction. In cases where a composition containingthe graft copolymer is to be used on human skin and hair, the presenceof heavy metal ions or formaldehyde is undesirable because they areconsidered by many to be cancer causing agents in humans, as well asenvironmentally harmful.

Further, graft copolymers are limited in the functional properties thatthey can provide. For example, the graft copolymer of U.S. Pat. No.4,464,523 Neigel et al. has highly charged cationic arms and a neutralbackbone. The possible polymer confirmations that allow such a polymerto interact with a keratin substrate are limited compared to a linearpolymer. Further, the localized high charge density of the cationic armscan lead to incompatibility with many anionic surfactants, making itdifficult to formulate with. These limitations result in inferiorperformance when such a polymer is used in keratin treating and/orcleansing compositions. For example, such polymers do not provideadequate wet combing properties when used in hair care formulations.Further the high localized charge density in cationic graft copolymersoften leads to the polymer building up on the hair causing anundesirable property of the hair to not hold its shape especially afterstyling.

There remains a need for a polymeric conditioning additives for keratinbased substrates that is easy to formulate with (easy to make clearsurfactant based formulations), does not change over time, and providesexcellent hair styling properties as well as excellent conditioningproperties to hair, skin, and nails.

SUMMARY OF THE INVENTION

The present invention is directed to a composition for treating akeratin based substrate that includes a cosmetically acceptable mediumcontaining a water-soluble polymer-polymer complex. The water-solublepolymer-polymer complex, or interjacent complex, includes a firstwater-soluble (a host polymer) polymer and a second water-solublepolymer formed by polymerizing one or more water-soluble monomers in thepresence of the first water-soluble polymer (an intercalated polymer).The water-soluble interjacent complex is characterized in that it formsa solution in water that is free of insoluble polymer particles andmaintains one uniform phase after standing at ambient conditions for atleast three months.

The present invention is further directed to a method of treating akeratin based substrate. The method includes applying a cosmeticallyacceptable medium to the substrate. The cosmetically acceptable mediumcontains from 0.1-20% by weight of the present water-soluble interjacentcomplex.

DETAILED DESCRIPTION OF THE INVENTION

Other than in the operating examples, or where otherwise indicated, allnumbers or expressions referring to quantities of ingredients, reactionconditions, etc. used in the specification and claims are to beunderstood as modified in all instances by the term “about.”Accordingly, unless indicated to the contrary, the numerical parametersset forth in the following specification and attached claims areapproximations that may vary depending upon the desired propertiessought to be obtained by the present invention. At the very least, andnot as an attempt to limit the application of the doctrine ofequivalents to the scope of the claims, each numerical parameter shouldat least be construed in light of the number of reported significantdigits and by applying ordinary rounding techniques.

Notwithstanding that the numerical ranges and parameters setting forththe broad scope of the invention are approximations, the numericalvalues set forth in the specific examples are reported as precisely aspossible. Any numerical values, however, inherently contain certainerrors necessarily resulting from the standard deviation found in theirrespective testing measurements.

Also, it should be understood that any numerical range recited herein isintended to include all sub-ranges subsumed therein. For example, arange of “1 to 10” is intended to include all sub-ranges between andincluding the recited minimum value of 1 and the recited maximum valueof 10; that is, having a minimum value equal to or greater than 1 and amaximum value of equal to or less than 10. Because the disclosednumerical ranges are continuous, they include every value between theminimum and maximum values. Unless expressly indicated otherwise, thevarious numerical ranges specified in this application areapproximations.

As used herein, the term “substantially free” is meant to indicate thata material can be present in an incidental amount or that a particularoccurrence or reaction only takes place to an insignificant extent,which does not effect desired properties. In other words, the materialis not intentionally added to an indicated composition, but may bepresent at minor or inconsequential levels, for example, because it wascarried over as an impurity as part of an intended compositioncomponent.

As used herein, the terms “(meth)acrylic” and “(meth)acrylate” are meantto include both acrylic and methacrylic acid derivatives, such as thecorresponding alkyl esters often referred to as acrylates and(meth)acrylates, which the term (meth)acrylate is meant to encompass.

As used herein, the term “active basis” refers to a concentration ofadditive based on the active solids in the stock solution.

As used herein, the term “polymer” is meant to encompass oligomer, andincludes without limitation both homopolymers and copolymers.

As used herein, the phrase components “are different from each other”refers to components which do not have the same chemical structure asother components in the composition.

As used herein, the term “host polymer” refers to a polymer that ispresent during a polymerization reaction, but does not participate ininitiating the polymerization reaction. The term “intercalated polymer”refers to the polymer that is formed in the presence of the hostpolymer.

As used herein, the terms “interjacent complex” and “polymer-polymercomplex” refer to two polymers that are different from each other, andin intimate contact with each other. The interjacent or polymer-polymercomplex is prepared by polymerizing monomers to form a polymer in thepresence of a host polymer as described below. The interjacent complexis substantially free of grafting, which occurs only to the extent thatchain transfer reactions to the host polymer occur.

As used herein, the term “water-soluble,” when used in relation topolymers and interjacent complexes, refers to polymers and interjacentcomplexes that form a solution in water that is free of insolublepolymer particles. The determination that a solution is free ofinsoluble polymer particles can be made using conventional lightscattering techniques or by passing the solution through a sufficientlyfine filter screen capable of capturing insoluble polymer particles. Asa non-limiting example, an aqueous solution containing 5 percent byweight of a polymer or interjacent complex can be prepared and pouredthrough a U.S. Standard Sieve No. 100 (150 μm), and no particles areleft on the screen. Alternatively, the turbidity of an aqueous solutioncontaining 2.5 percent by weight of the polymer or interjacent complex,at a pH of from 5-9, may be measured using a turbidimeter ornephelometer. A reading of less than 20 nephelometric turbidity units(NTU) indicates the water-solubility of the polymer of interjacentcomplex.

As used herein, the terms “branching” and “branched polymers” refer tothe arms of polymers that have a main backbone with arms extendingtherefrom, are not interconnected with other polymer molecules, and arewater-soluble. Polymers that contain branching are distinguished fromcrossliked polymers in that crosslinked polymers are polymers that arebranched and interconnected with other polymer molecules to the pointthat they form a three-dimensional network and are not water-soluble,while branched polymers retain their water solubility.

As used herein, the phrase “no visible phase separation” refers to thehomogenous nature of the present interjacent complexes. “No visiblephase separation” refers to solutions containing two or more polymersthat maintain a single uniform phase after standing at ambientconditions for at least three months. In the present invention, thewater-soluble interjacent complex, as prepared, does not separate intodistinct phases after standing at ambient conditions for three months.

As used herein, the term “keratin” refers to human or animal hair, skin,and/or nails.

As used herein, the term “effective amount” refers to that amount of acomposition necessary to bring about a desired result, such as, forexample, the amount needed to treat a keratin-containing substraterelative to a particular purpose, such as conditioning.

As used herein the term “cosmetically acceptable medium” refers toformulations that are used to treat skin, hair, and/or nails and containone or more ingredients used by those skilled in the art to formulateproducts used to treat skin, hair, and/or nails. The cosmeticallyacceptable medium may be in any suitable form, i.e., a liquid, cream,emulsion, gel, thickening lotion, or powder and will typically containwater and may contain a cosmetically acceptable solvent and/or one ormore sufactants.

The present invention is directed to a composition for treating akeritin based substrate. The keratin treating composition includes awater-soluble interjacent complex made from:

(a) a water-soluble polymer; and

(b) a polymer formed by polymerizing one or more water-soluble monomersin the presence of the polymer in (a) to form an intercalated polymer.The water-soluble interjacent complex may be characterized by itsability to form a solution in water that is free of insoluble polymerparticles.

The present invention is further directed to a cosmetically acceptablemedium containing an effective amount of the present interjacentcomplex. An effective amount in the cosmetically acceptable medium is atleast 0.01 wt. %, in some cases, at least 0.1 wt. %, in other cases, atleast 0.2 wt. %, in some instances, at least 0.25 wt. %, and in somesituations, at least 0.5 wt. % of the cosmetically acceptable medium.Additionally, an effective amount of the interjacent complex in thecosmetically acceptable medium is up to 20 wt. %, in some cases, up to15 wt. %, in other cases, up to 12.5 wt. %, in some instances, up to 10wt. %, and in some situations, up to 5 wt. % of the cosmeticallyacceptable medium. The interjacent complex must be present at a levelsufficient to provide its benefit but not a level where its use becomescost prohibitive or interferes with the function of other components inthe cosmetically acceptable medium.

The cosmetically acceptable medium may be an aftershave, a sunscreen, ahand lotion, a liquid soap, a bar soap, a bath oil bar, a shaving cream,a dishwashing liquid, a conditioner, a hair dye, a permanent wave, ahair relaxer, a hair bleach, a hair setting composition, a styling gel,or a shower gel. In a presently preferred embodiment, the interjacentcomplex concentration is from 0.1 to 10%, based on total medium weight.

The present invention is further directed to a method for treating akeratin-containing substrate comprising contacting the substrate withthe above-defined interjacent complexes, typically, with an effectiveamount of the interjacent complexes or the cosmetically acceptablemedium defined above containing an effective amount of the presentinterjacent complex. An effective amount of the interjacent complex inthe present method is from 0.01 to 20 wt. %, in some cases, from 0.1 to15 wt. %, in other cases, from 0.15 to 12.5 wt. %, and in someinstances, from 0.20 to 10 wt. % based on the total weight of themedium.

The cosmetically acceptable medium will typically, also includesurfactants and other commonly used components as outlined below.

The interjacent complex used herein is typically, a water-solubleinterjacent complex prepared by polymerizing one or more water-solubleethylenically unsaturated polymerizable monomers in the presence of ahost polymer to form an intercalated polymer. The resultingwater-soluble interjacent complex forms a solution in water that is freeof insoluble polymer particles.

Any ethylenically unsaturated polymerizable monomer can be used in thepresent invention, so long as the resulting interjacent complex iswater-soluble. Preferred monomers are those that promote watersolubility or dispersibility. In this regard, preferred monomersinclude, but are not limited to, one or more of the following monomers;cationic monomers, such as acrylamidopropyltrimethyl ammonium chloride(APTAC), methacrylamidopropyltrimethyl ammonium chloride (MAPTAC),diallyl dimethyl ammonium chloride (DADMAC), acryloyloxyethyl trimethylammonium chloride (AETAC), and methacryloyloxyethyl trimethyl ammoniumchloride (METAC); anionic monomers, such as 2-acrylamido-2-methylpropanesulfonic acid (AMPSA), 2-methacrylamido-2-methylpropane sulfonic acid(MAMPSA), sulfonated styrene, and vinyl sulfonic acid; allyl ethersulfonic acids, such as propane sulfonic acid allyl ether, methallylether phenyl sulfonates, (meth)acrylic acid, maleic acid, itaconic acid,n-(meth)acrylamidopropyl,n,n-dimethyl,amino acetic acid,n-(meth)acryloyloxyethyl,n,n-dimethyl,amino acetic acid,n-(meth)acryloyloxyethyl,n,n-dimethyl,amino acetic acid, crotonic acid,(meth)acrylamidoglycolic acid, and 2-(meth)acrylamido-2-methylbutanoicacid; and nonionic monomers, such as C₁-C₂₂ straight or branched chainalkyl or aryl (meth)acrylate, a C₁-C₂₂ straight or branched chainn-alkyl or aryl (meth)acrylamide, acrylamide, methylacrylamide,n-vinylpyrrolidone, vinyl acetate, ethoxylated, and propoxylated(meth)acrylate; hydroxy functional (meth)acrylates, such ashydroxyethyl(meth)acrylate and hydrocypropyl(meth)acrylate,n,n-dimethyl(meth)acrylamide; styrene and styrene derivatives; C₁-C₂₂straight or branched chain alkyl, or aryl allyl ethers.

The interjacent complexes of the present invention are formed bypolymerizing one or more of the above-described monomers in the presenceof a host polymer. The host polymer can be a synthetic polymer, such asthose produced by free radical polymerization or condensationpolymerization or it may be a natural polymer, such as a natural gum, astarch, a modified starch, a cellulosic, a modified cellulosic, awater-soluble natural gum, water-soluble modified natural gums,proteins, or protein derivatives. Examples of host polymers that can beused in the present invention include, but are not limited to, vinylpolymers, water-soluble olefin containing copolymers, water-solublepolyacrylates, water-soluble polyamides, water-soluble polyesters,water-soluble polyurethanes, xanthan gums, sodium alginates,galactomanans, carageenan, gum arabic, cellulose and its derivatives,such as hydroxyethyl cellulose and hydroxypropyl cellulose, starch andits derivatives, guar and its derivatives, proteins and theirderivatives, water-soluble poly(meth)acrylates, water-solublepolyamides, water-soluble polyesters, water-soluble polyurethanes,water-soluble poly(vinyl alcohol), water-soluble poly (vinyl amine),water-soluble poly(ethylene imine), water-soluble amine/epihalohydrinpolyamines, water-soluble poly(meth)acrylamide, water-soluble(meth)acrylamide copolymers, water-soluble poly(meth)acrylic acid,water-soluble copolymers of (meth)acrylic acid, poly(diallyl dimethylammonium halides), copolymers of diallyl dimethyl ammonium halides,water-soluble vinyl pyrrolidone, water-soluble copolymers of vinylpyrrolidone, poly(meth)acrylamidopropyltrimethyl ammonium halides,copolymers of (meth)acrylamidopropyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium halides, copolymers of(meth)acryloyloxyethyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, andcopolymers of (meth)acryloyloxyethyltrimethyl ammonium methyl sulfate.

The molecular weight (Mw) of the host polymer and the intercalatedpolymer will both be at least 1,000, in some cases, at least 5,000, inother cases, at least 10,000, in some instances, at least 20,000 and inother instances at least 25,000 or 50,000. On occasion, the molecularweight of the host polymer and the intercalated polymer will both be notmore than 10,000,000, in some cases, not more than 5,000,000, in othercases, not more than 2,500,000, in some instances, not more than1,000,000 and in other instances not more than 500,000. The actualmolecular weight of the host polymer and the intercalated polymer isdetermined based on the intended use and properties desired in theinterjacent complex. The molecular weight of the host polymer and theintercalated polymer may be any value or any range of values inclusiveof those stated above. The molecular weight (Mw) of the host polymer andthe intercalated polymer may be determined by viscometry in a UbbelhhdeCapillary Viscometer at 0.05% by weight concentration of the hostpolymer or intercalated polymer in 1M NaCl solution, at 30° C., pH 7.The reduced viscosity measured under such conditions may range from 0.1to 20 dl/g, in some cases, 0.25 to 15 dl/g, in other cases, 0.5 to 12.5dl/g, and in other instances, 1 to 10 dl/g. Alternatively, gelpermeation chromatography (GPC) using appropriate standards can be usedto determine molecular weight, in which case the Mw value is used as themolecular weight measurement.

A class of polymers that are particularly useful in the presentinvention as host polymers include those referred to as polyquaterniums.Preferred polyquaterniums include those described in the InternationalCosmetic Ingredient Dictionary, published by the Cosmetic, Toiletry, andFragrance Association (CTFA), 1101 17^(th) Street, N.W., Suite 300,Washington, D.C. 20036. Examples of such polyquaterniums include, butare not limited to (1) the polymeric quaternary ammonium salt ofhydroxyethyl cellulose reacted with a trimethyl ammonium substitutedepoxide, referred to as Polyquaternium-10; (2) the quaternary ammoniumderivative of hydroxypropyl guar, referred to as guarhydroxypropyltrimonium chloride; (3) the copolymer ofhydroxyethylcellulose and DADMAC, referred to as Polyquaternium-4; (4)the copolymer of acrylamide and METAMS, referred to as Polyquaternium-5;(5) the homopolymer of DADMAC, referred to as Polyquaternium-6; (6) Thecopolymer of acrylamide and DADMAC, referred to as Polyquaternium-7; (7)the copolymer of vinyl pyrrolidone and METAMS, referred to asPolyquaternium-11; (8) the homopolymer of METAMS, referred to asPolyquaternium-14; (9) the copolymer of methacrylamide and METAMS,referred to as Polyquaternium-15; (10) the polymeric quaternary ammoniumsalt of hydroxyethyl cellulose reacted with a lauryl dimethyl ammoniumsubstituted epoxide, referred to as Polyquaternium-24; (11) thecopolymer of vinyl pyrrolidone and MAPTAC, referred to asPolyquaternium-28; (12) the copolymer of acrylamide and METAC, referredto as Polyquaternium-32; (13) the copolymer of acrylamide and AETAC,referred to as Polyquaternium-33; (14) the copolymer ofbutylmethacrylate, dimethylaminoethylmethacrylate, and METAMS, referredto as Polyquatemium-36; (15) the homopolymer of METAC, referred to asPolyquaternium-37; (16) the copolymer of METAMS, methyl methacrylate,and hydroxyethylmethacrylate, referred to as Polyquaternium-45; (17) thehomopolymer of MAPTAC, referred to as polymethacrylamidopropyltrimoniumchloride; (18) Hydroxypropyl trimethyl ammonium chloride etherderivatives of starch, as generally described by the CAS Registry Number5670-58-6, the starch of which can be derived from a variety of naturalsources such as corn, potato, rice, tapioca, wheat, or other sources;(19) the copolymer of DADMAC and acrylic acid, referred to asPolyquaternium-22; (20) the copolymer of DADMAC, acrylic acid, andacrylamide, referred to as Polyquaternium-39; and (21) the copolymer ofMAPTAC, acrylic acid, and methyl(meth)acrylate, referred to atPolyquaternium-47.

One or more host polymers may be used to prepare the presentwater-soluble interjacent complex. The host polymer is present duringthe polymerization and formation of the intercalated polymer. As such itis present at a level of at least 0.01 wt. %, in some cases, at least0.1 wt. %, in other cases, at least 0.5 wt. %, in some instances, atleast 1.0 wt. % and in other instances, at least 5 wt. % based on thetotal weight of monomer and host polymer in the composition of theinterjacent complex. The host polymer is present at a level that willallow its beneficial properties to be ascertainable. The level of thehost polymer in the interjacent complex can be up to 95 wt. %, in somecases, up to 75 wt. %, in other cases, up to 50 wt. %, in someinstances, up to 25 wt. % and in other instances up to 10 wt. % based onthe total weight of monomer and host polymer in the composition of theinterjacent complex. The maximum limit for the host polymer isdetermined by the properties desired in the interjacent complex and themolecular weight of the host polymer. The host polymer level is not sohigh as to make the polymerization medium too highly viscous as to deterthorough mixing of the host polymers and monomers for the intercalatedpolymer. The amount of host polymer in the present interjacent complexcan be any level or range of the levels recited above.

In an embodiment of the present invention, the interjacent complexincludes an intercalated polymer prepared in the presence of one or moreof the above-mentioned host polymers. The polymerization is carried outusing a monomer composition including: (a) 0 to 100 mol %, typically, 5to 90 mol %, in some cases, 10 to 75 mol % and in other cases, 20 to 50mol % of a cationic monomer; (b) 0 to 100 mol %, typically, 5 to 50 mol%, in some cases, 10-50 mol % and in other cases, 20 to 45 mol % of ananionic monomer; (c) 0 to 100 mol %, typically, 10 to 90 mol %, in somecases, 15-75 mol % and in other cases, 20 to 60 mol % of a nonionicmonomer polymerized in the presence of the host polymer. In thisembodiment (a), (b) and (c) are different from each other and the totalmol % for (a), (b), and (c) is 100 mol %.

In a further embodiment, the present invention is directed to awater-soluble interjacent complex prepared by polymerizing a monomermixture that includes (a) a cationic monomer; (b) a sulfonic acidcontaining anionic monomer; (c) a carboxylic acid containing anionicmonomer; and (d) a nonionic monomer in the presence of one or more ofthe above-mentioned host polymers.

When included, the cationic monomer is present in the intercalatedpolymer at a level of at least 5 mol %, in some cases, at least 10 mol%, in other cases, at least 15 mol %, and in some instances, at least 20mol % based on the total monomer composition of the intercalatedpolymer. When used, the cationic monomer must be present at a level thatwill promote surface interaction and substantivity of the presentinterjacent complex to the keratin substrate. When used, the level ofcationic monomer in the intercalated polymer can be up to 95 mol %, insome cases, up to 85 mol %, in other cases, up to 75 mol %, and in someinstances, up to 60 mol % based on the total monomer composition of theintercalated polymer. When the level of cationic monomer is too high,the present interjacent complex may become difficult to formulate incompositions containing anionic surfactants. The amount of cationicmonomer in the present intercalated polymer can be any level or range ofthe levels recited above.

When included, the sulfonic acid functional anionic monomer is includedin the present intercalated polymer at a level of at least 1 mol %, insome cases, at least 5 mol %, in other cases, at least 7.5 mol %, and insome instances, at least 10 mol %. The sulfonic acid functional anionicmonomer is present at a level sufficient to promote compatibility withanionic surfactant containing formulations. When included, the level ofsulfonic acid functional anionic monomer is present in the intercalatedpolymer at up to 80 mol %, in some cases, to 70 mol %, in other cases,up to 60 mol %, and in some instances, up to 50 mol % based on the totalmonomer composition of the intercalated polymer. If the level ofsulfonic acid functional anionic monomer is too high, the presentinterjacent complex becomes difficult to formulate in cosmeticallyacceptable compositions and substantivity may be diminished. The amountof sulfonic acid functional anionic in the intercalated polymer of thepresent invention may be any level or range of the levels recited above.

The carboxylic acid functional anionic monomer is optionally included inthe intercalated polymer. When the carboxylic acid functional anionicmonomer is included, it is included at a level of at least 1 mol %, insome cases, at least 5 mol %, in other cases, at least 10 mol %, and insome instances, at least 15 mol %. The carboxylic acid functionalanionic monomer is present at a level sufficient to promotecompatibility with anionic surfactant containing formulations. The levelof carboxylic acid functional anionic monomer in the intercalatedpolymer can be up to 80 mol %, in some cases, up to 50 mol %, in othercases, up to 40 mol %, in some instances, up to 30 mol %, and in otherinstances up to 25 mol % based on the overall intercalated polymercomposition. If the level of carboxylic acid functional anionic monomeris too high, the present interjacent complex becomes difficult toformulate in cosmetically acceptable compositions and substantivity maybe diminished. The amount of carboxylic acid functional anionic monomerin the present intercalated polymer can be any level or range of levelsrecited above.

The nonionic monomer is optionally included in the intercalated polymer.When the nonionic monomer is included, it is included at a level of atleast 5 mol %, in some cases, at least 10 mol %, in other cases, atleast 15 mol %, and in some instances, at least 20 mol %. The nonionicmonomer promotes hydrogen bonding between the present interjacentcomplex and the keratin substrate and also promotes desirablefilm-forming properties of the present interjacent complex. The level ofnonionic monomer in the intercalated polymer can be up to 99 mol %, insome cases, 90 mol %, in other cases, up to 60 mol %, in some instances,up to 50 mol %, and in other instances up to 45 mol % based on theoverall intercalated polymer composition. If the level of nonionicmonomer is too high, substantivity may be poor. The amount of nonionicmonomer in the intercalated polymer can be any level or range of levelsrecited above.

In an embodiment of the present invention, when one or more nonionicmonomers are included in the intercalated polymer, the intercalatedpolymer may include from 20 to 95 mol %, in some cases, 20 to 50 mol %,in other cases, 25 to 50 and in some instances, 30 to 45 mol % of acationic monomer; (b) 0 to 80 mol %, in some cases, 5 to 40 mol %, inother cases, 5-30 mol %, and in some instances, 5 to 25 mol % of asulfonic acid functional anionic monomer; (c) 0-55 mol %, in some cases,5 to 50 mol %, in other cases, 10 to 45 mol %, and in some instances, 15to 45 mol % of nonionic monomer; and (d) 0-25 mol %, in some cases, 5 to25 mol %, in other cases, 10-25 mol %, and in some instances, 15-25 mol% carboxylic acid functional anionic monomer. The sum of the totalamount of monomers in (a), (b), (c), and (d) is always 100 mol %.

Any suitable cationic monomer may be used to make the intercalatedpolymer of the present invention. Presently preferred cationic monomersinclude, but are not limited to, acrylamidopropyltrimethyl ammoniumhalide (APTAH), methacrylamidopropyltrimethyl ammonium halide (MAPTAH),diallyl dimethyl ammonium halide (DADMAH), acryloyloxyethyl trimethylammonium halide (AETAH), and methacryloyloxyethyl trimethyl ammoniumhalide (METAH). In an embodiment of the present invention, the halidesare selected from chloride, bromide, and iodide.

Any suitable sulfonic acid containing anionic monomer may be used tomake the intercalated polymer of the present invention. Presentlypreferred sulfonic acid containing anionic monomers include, but are notlimited to, 2-acrylamido-2-methylpropane sulfonic acid (AMPSA),2-methacrylamido-2-methylpropane sulfonic acid (MAMPSA), sulfonatedstyrene, vinyl sulfonic acid, allyl ether sulfonic acids, such aspropane sulfonic acid, allyl ether, and methallyl ether phenylsulfonates.

In an embodiment of the present invention, the mol ratio of cationicmonomer to sulfonic acid containing anionic monomer in the intercalatedpolymer ranges from 20:80 to 95:5, typically, from 25:75 to 75:25.

Any suitable nonionic monomer may be used to make the intercalatedpolymer of the present invention. Presently preferred nonionic monomersinclude, but are not limited to, C₁-C₂₂ straight or branched chain alkylor aryl (meth)acrylate, a C₁-C₂₂ straight or branched chain n-alkyl oraryl (meth)acrylamide, acrylamide, methylacrylamide, n-vinylpyrrolidone,vinyl acetate, ethoxylated, and propoxylated (meth)acrylate, hydroxyfunctional (meth)acrylates, such as hydroxyethyl(meth)acrylate andhydrocypropyl(meth)acrylate, n,n-dimethyl(meth)acrylamide, styrene andstyrene derivatives, C₁-C₂₂ straight or branched chain alkyl, or arylallyl ethers.

Any suitable carboxylic acid containing anionic monomer may be used tomake the intercalated polymer of the present invention. Presentlypreferred carboxylic acid containing monomers include, but are notlimited to, (meth)acrylic acid, maleic acid, itaconic acid,N-(meth)acrylamidopropyl,N,N-dimethyl,amino acetic acid,N-(meth)acryloyloxyethyl,N,N-dimethyl,amino acetic acid,N-(meth)acryloyloxyethyl,N,N-dimethyl,amino acetic acid, crotonic acid,(meth)acrylamidoglycolic acid, and 2-(meth)acrylamido-2-methylbutanoicacid.

As was described above, the present interjacent complex includes a hostpolymer and an intercalated polymer. The weight ratio of the twopolymers in the interjacent complex will vary depending on theproperties desired from the interjacent complex. When an excess of hostpolymer is desired, the weight ratio of the host polymer to theinercalated polymer may be 100:1, in some cases, 75:1, in other cases,50:1, in some instances, 25:1, in other instances, 10:1, and oftentimes, 5:1. In an embodiment of the present invention, the weight ratioof the host polymer to the intercalated polymer is 1:1. When it isdesirable to have the intercalated polymer present in excess, the weightratio of the host polymer to the intercalated polymer may be 1:100, insome cases, 1:75, in other cases, 1:50, in some instances, 1:25, inother instances, 1:10, and often times, 1:5. The weight ratio of thehost polymer to the intercalated polymer in the interjacent polymercomplex may range between any of the ratios recited above.

The interjacent complexes of the present invention provide severaladvantages when compared to physical blends of comparable polymers. Theinterjacent complexes provide a means of formulating with highly chargedpolymers in formulations that would otherwise be incompatible with suchingredients in the formulation. Solutions of the present interjacentcomplex demonstrate improved stability, i.e., less or no visible phaseseparation over time, than comparable physical blends or mixtures ofcomparable polymers. The interjacent complexes provide a means ofdelivering a highly charged polymer to the surface of dispersed solidsin an aqueous system. Further, the combined action of the two polymers,as complexed herein, provide enhanced and synergistic performance andphysical properties compared to physical blends or mixtures ofcomparable polymers.

The weight average molecular weight of the interjacent complex, asdetermined by viscometry, is at least 1,000, typically, from 10,000 to10,000,000, more typically, from 25,000 to 8,000,000, and mosttypically, from 50,000 to 5,000,000. Alternatively, gel permeationchromatography (GPC) using appropriate standards can be used todetermine molecular weight, in which case the Mw value is used as themolecular weight measurement. The molecular weight (Mw) of theinterjacent complex may be determined by viscometry in a UbbelhhdeCapillary Viscometer at 0.05% by weight concentration of the interjacentcomplex in 1M NaCl solution, at 30° C., pH 7. The reduced viscositymeasured under such conditions may range from 0.1 to 20 dl/g, in somecases, 0.25 to 15 dl/g, in other cases, 0.5 to 12.5 dl/g, and in otherinstances, 1 to 10 dl/g. Alternatively, gel permeation chromatography(GPC) using appropriate standards can be used to determine molecularweight, in which case the Mw value is used as the molecular weightmeasurement.

The present interjacent complexes may be prepared by conventionalsolution polymerization techniques or alternatively by water-in-oilemulsion polymerization techniques. When prepared as a solutionpolymerization, the polymer and monomer(s) are combined in an aqueoussolution and the monomers are polymerized.

In an oil-in-water emulsion system, the host polymer and monomer(s) arecombined in an aqueous solution and dispersed in a suitable hydrocarboncontinuous phase to form discrete droplets dispersed within thehydrocarbon. A suitable initiator is then added to the water-in-oilemulsion, which is allowed to polymerize in either an adiabatic orisothermal mode. In an alternative embodiment, an oil soluble monomercan be added after the above-described polymerization step, andsubsequently polymerized using a suitable initiator to form core-shelldispersed particles. In this alternative embodiment, the outer surface,or shell, of the particle contains the polymerized oil soluble monomer,and the inner portion, or core, contains the interjacent complex.

In an embodiment of the present invention, the interjacent complex isformed via a solution polymerization. To prepare the present interjacentcomplex, the appropriate weights for the desired mol percentages ofmonomers, for example, cationic monomer, sulfonic acid containinganionic monomer, carboxylic acid containing anionic monomer and nonionicmonomer, together with one or more of the above-mentioned host polymersare charged to a glass reactor equipped with a stirring means. Thedesired total monomer concentration is generally about 10-30% by weight.The monomer mixture may then be adjusted to a pH of about 2.0 to about6.5 with dilute NaOH, heated to about 55° C., and purged with nitrogenfor at least thirty minutes. Polymerization is then initiated by adding5×10⁻² mol % of sodium persulfate and 2.4×10⁻³ mol % of sodiumbisulfate. After the peak exotherm is reached, additional dilution waterand sodium bisulfite are added to scavenge any residual monomer and todilute the final product polymer solids. The use of ceric or ferrousions is avoided so as to not promote grafting cations. In other words,the present polymerization is conducted in the substantial absence ofceric, ferrous, or ferrous ions.

Regardless of the preparation process employed, the host polymer and theintercalated polymer can be polymers made using different manufacturetechniques. For example one polymer can be made using an adiabaticprocess, which will typically, result in a wide molecular weight andpolymer composition distribution. The other polymer can be preparedusing an isothermal process, which will typically, provide a polymerwith a narrow molecular weight distribution. The resulting interjacentcomplex resulting from the combination of the two manufacturingprocesses results in unique properties for the resulting complex.

The intercalated polymer derived from polymerizing the above mentionedmonomers in the presence of a host polymer may be branched by includingsuitable “crosslinking” monomers in the polymerization process. Acrosslinking monomer is one or more monomers that have two or more sitesof reactive unsaturation. Typically, a branching quantity of one or moremonomers that have two or more sites of reactive unsaturation are usedin addition to the above-described monomers to make the intercalatedpolymer. The branching quantity of the monomers having two or more sitesof reactive unsaturation may be from 0.0001 to 0.1 mol %, in some cases,0.001 to 0.09 mol %, in other cases, 0.01 to 0.075 mol % in someinstances, 0.015 to 0.05 mol %, and in other instances 0.02 to 0.03 mol% based on the total number of mols of monomers used to make theintercalated polymer.

Examples of monomers having two or more sites of reactive unsaturationthat may be used in the present invention include, but are not limitedto, ethylene glycol di(meth)acrylate, triethylene glycoldi(meth)acrylate, tetraethylene glycol di(meth)acrylate, 1,3-butyleneglycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate,1,4-butanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate,1,6-hexanediol di(meth)acrylate, pentaerythritol di(meth)acrylate,pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate,glycerol di(meth)acrylate, glycerol allyloxy di(meth)acrylate,1,1,1-tris(hydroxymethyl)ethane di(meth)acrylate,1,1,1-tris(hydroxymethyl)ethane tri(meth)acrylate,1,1,1-tris(hydroxymethyl)propane di(meth)acrylate,1,1,1-tris(hydroxymethyl)propane tri(meth)acrylate, triallyl cyanurate,triallyl isocyanurate, triallyl trimellitate, diallyl phthalate, diallylterephthalte, divinyl benzene, triallylamine, and methylenebis (meth)acrylamide.

Further, the interjacent complexes of the present invention may bepurified, or provided in “narrow” molecular weight form, through artrecognized methods of polymer fractionation by using poor solventsand/or non-solvents for the interjacent complex. Other methods offractionating the interjacent complex include, but are not limited to,precipitation and membrane separation, including the use of cross-flowmembranes.

Reduced viscosity (dl/g) may be used as an approximate measure of theweight average molecular weight of the interjacent complexes of thepresent invention. The values may be determined using a UbbelhhdeCapillary Viscometer at 0.05% concentration of polymer in a 1M NaClsolution, pH 7, at 30° C. The resulting molecular weight value iscalculated in accordance with methods well known in the art. The reducedviscosity of the interjacent complex of the present invention is from0.1 to 20 dl/g, in many cases, 0.5 to 15 dl/g, typically, 0.75 to 12.5dl/g, and in some cases, 1 to 10 dl/g.

Not wishing to be bound to any single theory, it is believed that duringthe polymerization process, a minimal amount of grafting onto the hostpolymer may take place due to chain transfer to polymer reactions.However, the great bulk and majority of the host polymer molecules andintercalated polymer molecules are not grafted, interlinked or in anyway covalently bonded to each other. Further, it is believed that thehost polymer and the intercalated polymer form a structure wherehydrophobic domains in the polymer molecules may associate with eachother, oppositely charged ionic or dipolar species in each polymer mayassociate with each other as well as other forces, such as Van der Wallsand hydrogen bonding, act to maintain the polymer molecules in intimateassociation with each other. These associations may mimic many commonlyobserved properties observed in IPNs. The interjacent complex that isformed in the present invention cannot be formed through physical mixingand does not phase separation on standing, dissociate on dilution, orphysical manipulation of the interjacent complex. These polymer-polymerinteractions and entanglements aid in stabilizing the interjacentcomplex that forms and minimizes the potential negative consequencesthat may occur due to, for example, poly salt formation. Laboratoryexperiments indicate that the two polymer components in the presentinterjacent complex cannot be separated by conventional separationtechniques, indicating the unique structure that is formed between thetwo polymers.

The interjacent complexes of the present invention provide severaladvantages in personal care applications. The interjacent complexesprovide a means of formulating with highly charged polymers informulations that would otherwise be incompatible with the ingredientsof the formulation. The interjacent complexes provide a means ofdelivering the highly charged polymer to the keratin substrate. Further,the combined action of the two polymers, as complexed herein, provideenhanced and synergistic conditioning properties to hair, skin, andnails not available in prior art formulations.

The interjacent complexes may be added to a cosmetically acceptablemedium at a concentration of from 0.1 to 10% by weight based on totalmedium weight. Methods of adding the instant interjacent complexes to acosmetically acceptable medium are well known to those familiar with theart. The best mode also entails use of an effective amount of theinterjacent complex containing medium in the treatment of akeratin-containing substrate, typically, human skin or hair. Methods ofusing such compositions are well known in the art.

The interjacent complexes of the present invention are used incompositions for treating hair, skin, or nails by incorporating them ina cosmetically acceptable medium used to treat hair, skin, or nails inamounts of about 0.01 to about 20% on an active polymer basis based onthe total weight of said medium and typically in an amount of from about0.1 to about 10% active polymer based on total medium weight.

These compositions can be presented in various forms, i.e., variouscosmetically acceptable media, such as a liquid, cream, emulsion, gel,thickening lotion, or powder; they can contain water and also anycosmetically acceptable solvent, in particular, monoalcohols, such asalkanols having 1 to 8 carbon atoms (like ethanol, isopropanol, benzylalcohol and phenylethyl alcohol), polyalcohols, such as alkylene glycols(like glycerine, ethylene glycol and propylene glycol), and glycolethers, such as mono-, di-, and tri-ethylene glycol monoalkyl ethers,for example, ethylene glycol monomethyl ether and diethylene glycolmonomethyl ether, used singly or in a mixture. These solvents can bepresent in proportions of up to as much as 70% by weight, relative tothe weight of the total composition.

These compositions can also be packaged as an aerosol; in which case,they can be applied either in the form of an aerosol spray or in theform of an aerosol foam. As the propellant gas for these aerosols, it ispossible to use, in particular, dimethyl ether, carbon dioxide,nitrogen, nitrous oxide, and volatile hydrocarbons, such as butane,isobutane, propane, and possibly, chlorinated and fluorinatedhydrocarbons, although the latter are falling into increasingenvironmental disfavor.

Preferred compositions can also contain electrolytes, such as aluminumchlohydrate, alkali metal salts, e.g., sodium, potassium, or lithiumsalts, these salts typically, being halides, such as the chloride orbromide, and the sulfate, or salts with organic acids, such as theacetates or lactates, and also alkaline earth metal salts, typically,the carbonates, silicates, nitrates, acetates, gluconates, pantothenatesand lactates of calcium, magnesium and strontium. Any of these activeingredients can alternatively be incorporated with the interjacentcomplex of the present invention by including them in the polymerizationstep described above. Further, these active ingredients may be used inplace of the host polymer.

These compositions can also be presented in the form of a powder or oflyophilisates to be diluted before use.

The compositions according to the present invention can contain anyother ingredient normally used in cosmetics, such as perfumes,dyestuffs, which can serve to color the composition itself, or hairfibers, preservatives, sequestering agents, thickeners, silicones,softeners, foam synergistic agents, foam stabilizers, sun filters,peptising agents, and also anionic, non-ionic, cationic, or amphotericsurface-active agents or mixtures thereof.

These compositions can be used, in particular, in the form of a shampoo,a rinsing lotion, a cream or a treatment product which can be appliedbefore or after coloring or bleaching, before or after shampooing,before or after perming, or before or after straightening, and can alsoadopt the form of a coloring product, a setting lotion, a brushinglotion, a bleaching product, a perming product, or a straighteningproduct.

A particularly preferred embodiment consists of use in the form of ashampoo for washing the hair.

In this case, these compositions contain anionic, nonionic, oramphoteric surface-active agents typically, in an amount from 3-50% byweight, typically, 3-20%, and their pH is generally in the range of 3 to10.

The keratin cleansing compositions of the present invention typically,contain an anionic surfactant, which can comprise one or more anionicdetersive surfactants, which are anionic at the pH of the composition,to provide cleaning performance to the composition.

The anionic surfactant can be the only surfactant and will generally bepresent at a level from about 2% to about 50%, typically, from about 5%to about 30%, more typically, from about 6% to about 25%, of thecomposition, with about 10% to about 15% being most preferred. Forcleansing compositions, the anionic surfactant is the preferredsurfactant and is typically, present in the composition in combinationwith a second surfactant that is not cationic.

Anionic detersive surfactants useful herein include those that aredisclosed in U.S. Pat. No. 5,573,709 to Wells, the disclosure of whichis herein incorporated by reference in its entirety. Examples includealkyl and alkyl ether sulfates. Specific examples of alkyl ethersulfates which may be used in the present invention are sodium andammonium salts of lauryl sulfate, lauryl ether sulfate, coconut alkyltriethylene glycol ether sulfate, tallow alkyl triethylene glycol ethersulfate, and tallow alkyl hexaoxyethylene sulfate. Highly preferredalkyl ether sulfates are those comprising a mixture of individualcompounds, said mixture having an average alkyl chain length of fromabout 12 to about 16 carbon atoms and an average degree of ethoxylationof from about 1 to about 6 moles of ethylene oxide.

Another suitable class of anionic detersive surfactants are the alkylsulfuric acid salts. Important examples are the salts of an organicsulfuric acid reaction product of a hydrocarbon of the methane series,including iso-, neo-, ineso-, and n-paraffins, having about 8 to about24 carbon atoms, typically, about 12 to about 18 carbon atoms and asulfonating agent, e.g., SO₃, H₂SO₄, obtained according to knownsulfonation methods, including bleaching and hydrolysis. Preferred arealkali metal and ammonium sulfated C₁₂-C₃₈ n-paraffins.

Additional examples of synthetic anionic detersive surfactants whichcome within the terms of the present invention are the olefinsulfonates, the beta-alkyloxy alkalene sulfonates, and the reactionproducts of fatty acids esterified with isethionic acid and neutralizedwith sodium hydroxide, as well as succinamates. Specific examples ofsuccinamates include disodium N-octadecyl sulfofosuccinanrate;tetrasodium N-(1,2-dicarboxyethyl)-N-octadecylsulfosuccinamate; diamylester of sodium sulfosuccinic acid; dihexyl ester of sodiumsulfosuccinic acid; and dioctyl esters of sodium sulfosuccinic acid.

Many additional synthetic anionic surfactants are described in U.S. Pat.No. 3,929,678 to Laughlin et al., which is herein incorporated byreference in its entirety.

Preferred anionic detersive surfactants for use in the presentcompositions include ammonium lauryl sulfate, ammonium laureth sulfate,triethylamine lauryl sulfate, triethylamine laureth sulfate,triethanolamine lauryl sulfate, triethanolamine laureth sulfate,monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate,diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauricmonoglyceride sodium sulfate, sodium lauryl sulfate, sodium laurethsulfate, potassium lauryl sulfate, potassium laureth sulfate, sodiumlauryl sarcosinate, sodium lauroyl sarcosinate, lauryl sarcosine, cocoylsarcosine, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodiumcocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate,potassium lauryl sulfate, triethanolamine 1 lauryl sulfate,triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate,monoethanolamine lauryl sulfate, sodium tridecyl benzene sulfonate, andsodium dodecyl benzene sulfonate.

The keratin cleansing compositions of the present invention typically,contain an amphoteric detersive surfactant. The amount of thissurfactant is typically, no more than about 10 weight %. Examples ofamphoteric detersive surfactants which can be used in the compositionsof the present invention are those which are broadly described asderivatives of aliphatic secondary and tertiary amines in which thealiphatic substituent contains from about 8 to 18 carbon atoms and onecontains an anionic water solubilizing group, e.g., carboxy, sulfonate,sulfate, phosphate, or phosphonate. Examples of compounds falling withinthis definition are sodium 3-dodecyl-aminopropionate, sodium3-dodecylaminopropane sulfonate, sodium lauryl sarcosinate,N-alkyltaurines, such as the one prepared by reacting dodecylamine withsodium isethionate according to the teaching of U.S. Pat. No. 2,658,072to Kosmin, N-higher alkyl aspartic acids, such as those producedaccording to the teaching of U.S. Pat. No. 2,438,091 to Lynch, and theproducts described in U.S. Pat. No. 2,528,378 to Mannheimer.

In addition to the anionic detersive surfactant component, the keratincleansing compositions of the present invention can optionally containother detersive surfactants. These include nonionic surfactants,cationic surfactants, and zwitterionic surfactants. Optional detersivesurfactants, when used, are typically, present at levels of from about0.5% to about 20%, more typically, from about 1% to about 10%, althoughhigher or lower levels can be used. The total amount of detersivesurfactant in compositions containing optional detersive surfactants inaddition to the anionic surfactant will generally be from about 5% toabout 40%, typically, from about 8% to about 30%, more typically, fromabout 10% to about 25%.

Nonionic detersive surfactants which can be used include those broadlydefined as compounds produced by the condensation of alkylene oxidegroups (hydrophilic in nature) with an organic hydrophobic compound,which may be aliphatic or alkyl aromatic in nature. Examples ofpreferred classes of nonionic detersive surfactants are: the long chainalkanolamides; the polyethylene oxide condensates of alkyl phenols; thecondensation product of aliphatic alcohols having from about 8 to about18 carbon atoms, in either straight chain or branched chainconfiguration, with ethylene oxide; the long chain tertiary amineoxides; the long chain tertiary phosphine oxides; the long chain dialkylsulfoxides containing one short chain alkyl or hydroxy alkyl radical offrom about 1 to about 3 carbon atoms; the alkyl polysaccharide (APS)surfactants, such as the alkyl polyglycosides; and the polyethyleneglycol (PEG) glyceryl fatty esters.

Zwitterionic surfactants, such as betaines, can also useful in thepresent invention. Examples of betaines useful herein include the highalkyl betaines, such as coco dimethyl carboxymethyl betaine,cocoamidopropyl betaine, cocobetaine, lauryl amidopropyl betaine, oleylbetaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethylalphacarboxyethyl betaine, cetyl dimethyl carboxymethyl betaine, laurylbis-(2-hydroxyethyl) carboxymethyl betaine, stearylbis-(2-hydroxypropyl) carboxymethyl betaine, oleyl dimethylgamma-carboxypropyl betaine, and laurylbis-(2-hydroxypropyl)alpha-carboxyethyl betaine. The sulfobetaines maybe represented by coco dimethyl sulfopropyl betaine, stearyl dimethylsulfopropyl betaine, lauryl dimethyl sulfoethyl betaine, laurylbis-(2-hydroxyethyl) sulfopropyl betaine, and the like; amidobetaines;and amidosulfobetaines, wherein the RCONH(CH₂)₃ radical is attached tothe nitrogen atom of the betaine, are also useful in this invention.

Preferred compositions of the present invention are shampoos, showergels, and liquid hand soaps, and these typically, contain combinationsof anionic surfactants with zwitterionic surfactants and/or amphotericsurfactants. Especially preferred keratin cleansing compositions containfrom about 0% to about 16% of alkyl sulfates, from 0% to about 16% ofethoxylated alkyl sulfates, and from about 0% to about 10% of optionaldetersive surfactants selected from the nonionic, amphoteric, andzwitterionic detersive surfactants, with at least 5% of either alkylsulfate, ethoxylated alkyl sulfate, or a mixture thereof, and a totalsurfactant level of from about 10% to about 25%.

The keratin treating compositions of the present invention optionallycontain a nonvolatile, water insoluble, organic, oily liquid as apreferred type of conditioning agent. The conditioning oily liquid canprotect, lubricate, and/or moisturize the skin and add shine, softness,and luster to the hair. Additionally, it can also enhance dry combingand dry hair feel. The hair conditioning oily liquid is typically,present in the compositions at a level of from about 0.05% to about 5%,by weight of the composition, typically, from about 0.2% to about 3%,more typically, from about 0.5% to about 1%.

For skin care formulations, oil in water emulsions will contain amounts,by weight, of the organic insoluble liquid of about 3 to about 25%,typically, about 5 to about 20%, with about 6 to 15% being mostpreferred. Water-in-oil skin care formulations will contain amounts, byweight, of the organic insoluble liquid of about 25 to about 70%,typically, about 30 to about 60%, with about 35 to about 50% being mostpreferred.

By “nonvolatile” what is meant is that the oily material exhibits verylow or no significant vapor pressure at ambient conditions (e.g., 1atmosphere, 25° C.), as is understood in the art. The nonvolatile oilymaterials typically, have a boiling point at ambient pressure of about250° C. or higher.

By “water insoluble” what is meant is that the oily liquid is notsoluble in water (distilled or equivalent) at a concentration of 0.1%,at 25° C.

The conditioning oily liquids hereof generally will have a viscosity ofabout 3 million cs or less, typically, about 2 million cs or less, moretypically, about 1.5 million cs or less.

The conditioning oily materials hereof are liquids selected from thegroup consisting of hydrocarbon oils and fatty esters. The fatty estershereof are characterized by having at least 12 carbon atoms, and includeesters with hydrocarbon chains derived from fatty acids or alcohols,e.g., mono-esters, polyhydric alcohol esters, and di- and tri-carboxylicacid esters. The hydrocarbyl radicals of the fatty esters hereof canalso include or have covalently bonded thereto other compatiblefunctionalities, such as amides and alkoxy moieties (e.g., ethoxy orether linkages, etc.).

Hydrocarbon oils include cyclic hydrocarbons, straight chain aliphatichydrocarbons (saturated or unsaturated), and branched chain aliphatichydrocarbons (saturated or unsaturated). Straight chain hydrocarbon oilswill typically contain from about 12 to about 19 carbon atoms, althoughit is not necessarily meant to limit the hydrocarbons to this range.Branched chain hydrocarbon oils can and typically, may contain highernumbers of carbon atoms. Also encompassed herein are polymerichydrocarbons of alkenyl monomers, such as C₂-C₆ alkenyl monomers. Thesepolymers can be straight or branched chain polymers. The straight chainpolymers will typically, be relatively short in length, having a totalnumber of carbon atoms as described above for straight chainhydrocarbons in general. The branched chain polymers can havesubstantially higher chain length. The number average molecular weightof such materials can vary widely but will typically, be up to about500, typically, from about 200 to about 400, more typically, from about300 to about 350.

Specific examples of suitable materials include paraffin oil, mineraloil, saturated and unsaturated dodecane, saturated and unsaturatedtridecane, saturated and unsaturated tetradecane, saturated andunsaturated pentadecane, saturated and unsaturated hexadecane, andmixtures thereof. Branched-chain isomers of these compounds, as well asof higher chain length hydrocarbons, can also be used. Exemplarybranched-chain isomers are highly branched saturated or unsaturatedalkanes, such as the permethyl-substituted isomers, e.g., thepermethyl-substituted isomers of hexadecane and undecane, such as 2, 2,4, 4, 6, 6, 8, 8-dimethyl-10-methylundecane and 2, 2, 4, 4, 6,6-dimethyl-8-methyinonane, sold by Permethyl Corporation. A preferredhydrocarbon polymer is polybutene, such as the copolymer of isobutyleneand butene. A commercially available material of this type is L-19polybutene from Amoco Chemical Co. (Chicago, Ill., USA)

Monocarboxylic acid esters hereof include esters of alcohols and/oracids of the formula R′ COOR wherein alkyl or alkenyl radicals and thesum of carbon atoms in R′ and R is at least 10, typically, at least 20.

Fatty esters include, for example, alkyl and alkenyl esters of fattyacids having aliphatic chains with from about 10 to about 22 carbonatoms, and alkyl and alkenyl fatty alcohol carboxylic acid esters havingan alkyl and/or alkenyl alcohol-derived aliphatic chain with about 10 toabout 22 carbon atoms, and combinations thereof. Examples includeisopropyl isostearate, hexyl laurate, isohexyl laurate, isohexylpalmitate, isopropyl palmitate, decyl oleate, isodecyl oleate, hexadecylstearate, decyl stearate, isopropyl isostearate, dihexyl decyl adipate,lauryl lactate, myristyl lactate, cetyl lactate, oleyl stearate, oleyloleate, oleyl myristate, lauryl acetate, cetyl propionate, and oleyladipate.

The mono-carboxylic acid ester however needs not necessarily contain atleast one chain with at least 10 carbon atoms, so long as the totalnumber of aliphatic chain carbon atoms is at least 10. Examples includediisopropyl adipate, diisohexyl adipate, and diisopropyl sebacate.

Di- and tri-alkyl and alkenyl esters of carboxylic acids can also beused. These include, for example, esters of C₄-C₈ dicarboxylic acids,such as C₁-C₂₂ esters (typically, C₁-C₆) of succinic acid, glutaricacid, adipic acid, hexanoic acid, heptanoic acid, and octanoic acid.Specific examples include isocetyl stearyl stearate, diisopropyladipate, and tristearyl citrate. Polyhydric alcohol esters includealkylene glycol esters, for and di-fatty acid esters, diethylene exampleethylene glycol mono glycol mono- and di-fatty acid esters, polyethyleneglycol mono and di-fatty acid esters, propylene glycol mono-, anddi-fatty acid esters, polypropylene glycol mono oleate, polypropyleneglycol 2000 monostearate, ethoxylated propylene glycol monostearate,glyceryl mono- and di-fatty acid esters, polyglycerol poly-fatty acidesters, ethoxylated glyceryl monostearate, 1,3-butylene glycolmonostearate, 1,3-butylene glycol distearate, polyoxyethylene polyolfatty acid ester, sorbitan fatty acid esters, polyoxyethylene sorbitanfatty acid esters are satisfactory polyhydric alcohol esters for useherein.

Glycerides include mono-, di-, and tri-glycerides. More specifically,included are the mono-, di-, and tri-esters of glycerol and long chaincarboxylic acids, such as C₁₀-C₂₂ carboxylic acids. A variety of thesetypes of materials can be obtained from vegetable and animal fats andoils, such as castor oil, safflower oil, cotton seed oil, corn oil,olive oil, cod liver oil, almond oil, avocado oil, palm oil, sesame oil,lanolin, and soybean Synthetic oils include triolein and tristearinglyceryl dilaurate. Preferred glycerides are di- and tri-glycerides.Especially preferred are triglycerides.

The keratin treating compositions of the present invention optionallycontain a nonvolatile, nonionic silicone conditioning agent which isinsoluble in the compositions hereof. The silicone conditioning agent isintermixed in the composition so as to be in the form of dispersed,insoluble particles, or droplets. The silicone conditioning agentcomprises a nonvolatile, insoluble, silicone fluid and optionallycomprises a silicone gum which is insoluble in the composition as awhole but is soluble in the silicone fluid. The silicone conditioningagent can also comprise other ingredients, such as a silicone resin, toenhance deposition efficiency.

The silicone conditioning agent may comprise low levels of volatilesilicone components; however, such volatile silicones will typically,exceed no more than about 0.5%, by weight, of the composition.Typically, if volatile silicones are present, it will be incidental totheir use as a solvent or carrier for commercially available forms ofother ingredients, such as silicone gums and resins

The silicone conditioning agent for use herein will typically, have aviscosity of from about 1,000 to about 2,000,000 centistokes at 25° C.,more typically, from about 10,000 to about 1,800,000, even moretypically, from about 100,000 to about 1,500,000. The viscosity can bemeasured by means of a glass capillary viscometer as set forth in DowCorning Corporate Test Method CTM0004, Jul. 20, 1970.

The silicone conditioning agent will be used in the compositions hereofat levels of from about 0.5% to about 10% by weight of the composition,typically, from about 0.1% to about 10%, more typically, from about 0.5%to about 8%, most typically, from about 0.5% to about 5%. The siliconeconditioning agent is also typically, used in combination with theorganic water insoluble liquid.

Suitable insoluble, nonvolatile silicone fluids include polyalkylsiloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, polyethersiloxane copolymers, and mixtures thereof. Other insoluble, nonvolatilesilicone fluids having conditioning properties can also be used. Theterm “nonvolatile” as used herein shall mean that the silicone materialexhibits very low or no significant vapor pressure at ambientconditions, as is understood by those in the art. The term “siliconefluid” shall mean flowable silicone materials having a viscosity of lessthan 1,000,000 centistokes at 25° C. Generally, the viscosity of thefluid will be between about 5 and 1,000,000 centistokes at 25° C.,typically, between about 10 and about 100,000.

The nonvolatile polyalkylsiloxane fluids that may be used include, forexample, polydimethyl siloxanes. These siloxanes are available, forexample, from the General Electric Company in their Viscasil® and SF 96series and from Dow Corning in their Dow Corning 200 series.

The polyalkylaryl siloxane fluids that may be used, also include, forexample, polymethylphenylsiloxanes. These siloxanes are available, forexample, from the General Electric Company as SF 1075 methyl phenylfluid or from Dow Corning as 556 Cosmetic Grade Fluid.

The polyether siloxane copolymers that may be used include, for example,a polypropylene oxide modified polydimethylsiloxane (e.g., Dow CorningDC-1248) although ethylene oxide or mixtures of ethylene oxide andpropylene oxide may also be used. The ethylene oxide and polypropyleneoxide level must be sufficiently low to prevent solubility in water andthe composition hereof.

References disclosing suitable silicone fluids include U.S. Pat. No.2,826,551 to Geen; U.S. Pat. No. 3,964,500 to Drakoff; U.S. Pat. No.4,364,837 to Pader; U.S. Pat. No. 5,573,709 to Wells; British Patent No.849,433 to Woolston; and International Patent No. WO93/08787. All ofthese patents are herein incorporated by reference in their entireties.

Another silicone material that can be especially useful in the siliconeconditioning agents is insoluble silicone gum. The term “silicone gum,”as used herein, means polyorganosiloxane materials having a viscosity at25° C. of greater than or equal to 1,000,000 centistokes. Silicone gumsare described by Petrarch and others including U.S. Pat. No. 4,152,416to Spitzer et al. The “silicone gums” will typically, have a massmolecular weight in excess of about 200,000, generally between about200,000 and about 1,000,000. Specific examples includepolydimethylsiloxane, (polydimethyl siloxane) (methylvinylsiloxane)copolymer, poly(dimethyl siloxane) (diphenylsiloxane)(methylvinylsiloxane) copolymer, and mixtures thereof.

Typically, the silicone conditioning agent comprises a mixture of apolydimethylsiloxane gum, having a viscosity greater than about1,000,000 centistokes and polydimethyl siloxane fluid having a viscosityof from about 10 centistokes to about 100,000 centistokes, wherein theratio of gum to fluid is from about 30:70 to about 70:30, typically,from about 40:60 to about 60:40.

Another optional ingredient that can be included in the siliconeconditioning agent is silicone resin. Silicone resins are highlycrosslinked polymeric siloxane systems. The crosslinking is introducedthrough the incorporation of trifunctional and tetrafunctional silaneswith monofunctional or difunctional, or both, silanes during manufactureof the silicone resin. As is well understood in the art, the degree ofcrosslinking that is required in order to result in a silicone resinwill vary according to the specific silane units incorporated into thesilicone resin.

In general, silicone materials which have a sufficient level oftrifunctional and tetrafunctional siloxane monomer units (and hence, asufficient level of crosslinking) such that they dry down to a rigid orhard film are considered to be silicone resins. The ratio of oxygenatoms to silicon atoms is indicative of the level of crosslinking in aparticular silicone material. Silicone materials which have at leastabout 1.1 oxygen atoms per silicon atom will generally be siliconeresins herein. Typically, the ratio of oxygen to silicon atoms is atleast about 1.2:1.0 Silanes used in the manufacture of silicone resinsinclude monomethyl-, dimethyl-, trimethyl-, monophenyl-, diphenyl-,methylphenyl-, monovinyl-, and methylvinyl-chlorosilanes, andtetrachlorosilane, with the methyl-substituted silanes being mostcommonly utilized. Preferred resins are offered by General Electric asGE SS4230 and SS4267. Commercially available silicone resins willgenerally be supplied in a dissolved form in a low viscosity volatile ornonvolatile silicone fluid. The silicone resins for use herein should besupplied and incorporated into the present compositions in suchdissolved form, as will be readily apparent to those skilled in the art.

Examples of the more preferred optional silicones used includedimethicone, cyclomethicone, trimethyl silyl amodimethicone, phenyltrimethicone, trimethyl siloxy silicate, polyorganosiloxane,polyalkylsiloxane, polyarylsiloxane, polyalkylarylsiloxane, andpolyestersiloxane copolymers.

The keratin treating compositions of the present invention aretypically, liquids, which typically, are pourable at room temperature.The compositions hereof will comprise an aqueous carrier, i.e., water,which will generally be present at a level of about 20% to about 95% byweight of the composition, typically, from about 60% to about 85% forpourable, liquid formulations, such as shampoos, shower gels, liquidhand-soaps, and lotions. The compositions of the present invention canalso be in other forms, such as gels, mousse, etc. In such cases,appropriate components known in the art, such as gelling agents (e.g.,hydroxyethyl cellulose), etc. can be included in the compositions. Gelswill typically, contain from about 20% to about 90% water. Mousses willbe a low viscosity composition and will be packaged as a sprayableliquid according to techniques well known in the art, typically, in anaerosol canister including a propellant or a means for generating anaerosol spray.

The present keratin treating compositions may also comprise a varietynon-essential, optional components suitable for rendering suchcompositions more cosmetically or aesthetically acceptable or to providethem with additional usage benefits. A variety of such are known tothose skilled in the art in hair, skin, and nail care. These ingredientsare well-known and include without limiting the invention thereto:pearlescent aids, such as coated mica, ethylene glycol distearate;opacifiers, such as Tin, preservatives, such as 1,2-dibromo-2,4-dicyanobutane (MERGUARD® Nalco Chemical Company, Naperville, Ill., USA), benzylalcohol, 1,3-bis(hydroxymethyl)-5, 5-dimethyl-2,3-imidazolidinedione(e.g., GLYDANT®, Lonza Inc., Fairlawn, N.J., USA),methylchloroisothiazolinone (e.g., KATHON®, Rohm & Haas Co.,Philadelphia, Pa., USA), methyl paraben, propyl paraben, andimidazolidinyl urea; fatty alcohols, such as cetearyl alcohol, cetylalcohol, and stearyl alcohol; sodium chloride; ammonium chloride; sodiumsulfate; ethyl alcohol; pH adjusting aids, such as citric acid, sodiumcitrate, succinic acid, phosphoric acid, monosodium phosphate, disodiumphosphate, sodium hydroxide, and sodium carbonate; coloring agents ordyes; perfumes; and sequestering agents, such as disodiumethylenediamine tetra-acetate (EDTA).

Another optional ingredient that can be advantageously used is ananti-static agent. The anti-static agent should not unduly interferewith the in-use performance and end-benefits of the composition. This ismore important for shampoo compositions, and the anti-static agentshould particularly not interfere with the anionic detersive surfactant.Suitable anti-static agents include, for example, tricetyl methylammonium chloride.

Typically, from about 0.1% to about 5% of such anti-static agent isincorporated into the shampoo compositions.

Though the polymer components may act to thicken the presentcompositions to some degree, the present compositions may alsooptionally contain other thickeners and viscosity modifiers, such as anethanolamide of a long chain fatty acid, such as polyethylene (3) glycollauramide and coconut monoethanolamide (cocamide MEA), ammonium xylenesulfonate, xanthan gum, and hydroxyethyl cellulose.

These optional components generally are used individually in thecompositions of the present invention at a level of from about 0.01% toabout 10%, typically, from about 0.05% to about 5.0% of the composition.

The compositions of the present invention are utilized conventionally,i.e., the hair or skin is shampooed or washed by applying an effectiveamount of the composition to the scalp or skin, and then rinsing it offwith water. Application of the shampoo to the scalp in general,encompasses messaging or working the shampoo in the hair such that allor most of the hair on the scalp is contacted. The term an “effectiveamount” as used herein, is an amount which is effective in cleaning andconditioning the keratin substrate. Generally, from about 1 g to about20 g of the composition is applied for cleaning and conditioning thekeratin substrate, typically, the cosmetically acceptable medium isapplied to keratin in a wet or damp state.

The compositions hereof can also be useful for cleaning and conditioningthe skin. For such applications, the composition would be applied to theskin in a conventional manner, such as by rubbing or massaging the skinwith the composition, optionally in the presence of water, and thenrinsing it away with water. In the case of non-rinse-off products, thecomposition is left in full concentration in contact with the skin.

Another preferred embodiment consists of use in the form of a rinsinglotion to be applied mainly before or after shampooing. These lotionsare typically, aqueous or aqueous-alcoholic solutions, emulsions,thickened lotions, or gels. If the compositions are presented in theform of an emulsion, they can be nonionic, anionic, or cationic. Thenonionic emulsions consist mainly of a mixture of an oil and/or a fattyalcohol with a polyoxyethyleneated alcohol, such as polyoxyethyleneatedstearyl or cetyl/stearyl alcohol, and cationic surface-active agents canbe added to these compositions. The anionic emulsions are formedessentially from soap.

If the compositions are presented in the form of a thickened lotion or agel, they contain thickeners in the presence or absence of a solvent.The thickeners which can be used are especially carbopol, xanthan gums,sodium alginates, gum arabic, and cellulose derivatives, and it is alsopossible to achieve thickening by means of a mixture of polyethyleneglycol stearate or distearate or by means of a mixture of a phosphoricacid ester and an amide. The concentration of thickener is generally0.05 to 15% by weight. If the compositions are presented in the form ofa styling lotion, shaping lotion, or setting lotion, they generallycomprise, in aqueous, alcoholic, or aqueous-alcoholic solution, theinterjacent complexes defined above.

If the compositions of the instant invention are intended for use in thedyeing of keratin fibers, and in particular, human hair, they generallycontain at least one oxidation dyestuff precursor and/or one directdyestuff, in addition to the present interjacent complexes. They canalso contain any other adjuvant normally used in this type ofcomposition.

The pH of the dyeing compositions is generally 7 to 11 and can beadjusted to the desired value by adding an alkalizing agent.

The compositions according to the present invention can also be used forwaving or straightening the hair. In this case, the compositiongenerally contains, in addition to the instant interjacent complexes,one or more reducing agents and, if appropriate, other adjuvantsnormally used in this type of composition; such compositions areintended for use conjointly with a neutralizing composition.

In an embodiment of the present invention, an effective amount of thepresent water-soluble interjacent complex is added to an anionicsurfactant-containing hair or skin care product, a cosmeticallyacceptable formulation. Thus, the water-soluble interjacent complexescompositions of the present invention can be used in, inter alia,shampoos, conditioners, shower gels, bar soaps, rinses, coloringproducts, bleaching products, setting lotions, blow-drying lotions,restructuring lotions, skin cleaners, skin care lotions, skin carecreams, perms, and straightening products.

The present invention will further be described by reference to thefollowing examples. The following examples are merely illustrative ofthe invention and are not intended to be limiting. Unless otherwiseindicated, all percentages are by weight.

EXAMPLE 1

The ingredients in Table 1 were added to a 2-Liter Resin Kettle fittedwith a condenser, stirrer, and thermocouple.

TABLE 1 Ingredient Charge (g) Charge 1 Polyquaternium-7¹ 237.3 DADMAC²1076.9 NaEDTA³ 0.75 Charge 2 Sodium Persulfate 4.1 Deionized water 25.4Charge 3 Deionized water 409.7 ¹20 wt % aqueous gel available asin-process WSPQ7 from WSP Chemicals & Technologies, Inc., Ambridge, Pa.²64.8 wt. % solution in water available from Pearl River Polymer,Slidell, La. ³Tetrasodium N, N′, N″, N″′ - ethylene diamine tetra aceticacid

Charge 1 was added to the Resin Kettle and heated to 80° C. withstirring until homogeneous (about 2 hours). Approximate concentration ofDADMAC was 53.0% and Polyquatemium-7 is 3.6% by weight. Charge 2 was fedto the Resin Kettle at a rate of 0.064 ml/min for a period of 50minutes. After about a 12 minutes the temperature of the solution beganto rise indicating that polymerization had begun. The feed rate ofcharge 1 was decreased to 0.16 ml/min for a period of 20 minutes. Thetemperature of the reaction mix increased to about 110° C. and wasmaintained there due to reflux. The remainder of charge 1 was fed to theResin Kettle at a rate of 0.32 ml/min (about 50-60 minutes). Thetemperature was maintained between 100-105° C. Charge 3 was heated to atleast 80° C., and maintained at this temperature with stirring for 40minutes until a uniform mixture was formed. The solution was cooled toabout 40° C. and 50 wt. % aqueous sodium hydroxide was added dropwiseuntil the pH was between 6-7. The resulting solution contained 39.7%poly(DADMAC) and 2.7% Polyquatemium-7. The solution remained uniformafter standing at room temperature for three months. A 5 wt. % aqueoussolution (active polymer basis) of the poly(DADMAC)-Polyquatemium-7interjacent complex passed through a 100 mesh sieve (EW-59994-16,Cole-Parmer Instrument Company, Vernon Hills, Ill.) and left noinsoluble polymer residue on the screen. A 2.5 wt. % solution was alsomeasured for turbidity on a standard laboratory turbidimeter (Model2100AN, Loveland, Colo.) and measured less than 20 ntu.

EXAMPLE 2

The ingredients in Table 2 were added to a 2-Liter Resin Kettle fittedwith a condenser, stirrer, thermocouple and nitrogen purge tube.

TABLE 2 Ingredient Charge (g) Charge 1 Polyquaternium-11⁴ 240.1 MEHQ⁵0.0016 Deionized water 227.6 Charge 2 Acrylamide (50%) 82.4 DADMAC(64.8%) 44.9 NaEDTA 0.28 Charge 3 2,2′-Azobis(2- 0.2methylpropionamide)dihydrochloride⁶ Deionized water 5.0 Charge 4Deionized water 130.0 Sodium metabisulfite 2.0 ⁴20 wt % aqueous solutionavailable as Gafquat ® 755N from International Specialty Products,Wayne, New Jersey. ⁵Methyl ester of hydroquinone. ⁶Available as V-50from Wako Chemicals USA, Inc., Dallas, Texas.

Charge 1 was added to the Resin Kettle with mixing, heat was applied toaid in homogenizing the solution. Charge 2 was added to the ResinKettle, heating was continued with stirring and a nitrogen sub-surfacepurge at about 3-5 scfh was started. Heating was continued to 60° C. andthe nitrogen purge was maintained for at least 30 minutes. Charge 3 wasadded to the Resin Kettle. An exotherm was noticed after one or twominutes after which time the nitrogen purge was reduced to a blanketheadspace flow of about 0.5 scfh. The reaction temperature peaked atabout 75° C. The temperature was maintained for about two hours at whichtime charge 4 was added to the Resin Kettle with stirring and held at75° C. for 30 minutes. The solution remained uniform after standing atroom temperature for three months. A 5 wt. % aqueous solution (activepolymer basis) of the Polyquatemium-11-acrylamide/DADMAC copolymerinterjacent complex passed through a 100 mesh sieve (EW-59994-16,Cole-Parmer Instrument Company, Vernon Hills, Ill.) and left noinsoluble polymer residue on the screen. A 2.5 wt. % solution was alsomeasured for turbidity on a standard laboratory turbidimeter (Model2100AN, Loveland, Colo.) and measured less than 20 ntu.

EXAMPLE 3

The ingredients in Table 3 were added to a 2-Liter Resin Kettle fittedwith a condenser, stirrer, thermocouple and nitrogen purge tube

TABLE 3 Ingredient Charge (g) Charge 1 Polyquaternium-28⁷ 156.7Deionized water 97.4 Charge 2 Sodium Hydroxide (50%) 5.02-Acrylamido-2-methyl-2-propanesulfonic acid 12.9 Acrylic acid 15.3Sodium Hydroxide (50%) 11.7 Acrylamide (50%) 19.1 Acryloyloxyethyl,trimethyl ammonium 70.3 chloride (80.5%) NaEDTA 0.3 Charge 3 Sodiumpersulfate 0.2 Deionized water 6.0 Charge 4 Deionized water 6.0 Sodiummetabisulfite 0.6 Charge 5 Deionized water 150.0 Sodium metabisulfite1.5 ⁷20 wt % aq. solution available as Gafquat ® HS-100 fromInternational Specialty Products, Wayne, New Jersey.

Charge 1 was added to the Resin Kettle and mixed until uniform. Charge 2was then added to the Resin Kettle an mixed until uniform. The pH shouldof the solution was about 5.1. The mixture was stirred with heating anda nitrogen sub-surface purge at about 3-5 scfh was begun for about 30minutes. Charge 3 was added to the Resin Kettle wile stirring and abouttwo minutes thereafter Charge 4 was added to the Resin Kettle.

In about two minutes, the solution temperature began to rise. Afterabout three minutes, the nitrogen purge was reduced to a blanketheadspace flow at about 0.5 scfh and the reaction temperature exceeded80° C. After about one hour, charge 5 was added to the Resin Kettle,maintaining the temperature at 80° C. for at least 30 minutes. Thesolution remained uniform after standing at room temperature for threemonths. A 5 wt. % aqueous solution (active polymer basis) of the acrylicacid/AMPSA/acrylamide/AETAC copolymer—Polyquatemium-28 interjacentcomplex passed through a 100 mesh sieve (EW-59994-16, Cole-ParmerInstrument Company, Vernon Hills, Ill.) and left no insoluble polymerresidue on the screen. A 2.5 wt. % solution was also measured forturbidity on a standard laboratory turbidimeter (Model 2100AN, Loveland,Colo.) and measured less than 20 ntu.

EXAMPLE 4

A interjacent complex was prepared as in example 2 using the ingredientsoutlined in Table 4.

TABLE 4 Ingredient Charge (g) Charge 1 Polyquaternium-10⁸ 35.1 MEHQ0.0016 Deionized water 390.2 Charge 2 Acrylamide (50%) 20.4 DADMAC(64.8%) 30.6 NaEDTA 0.02 Charge 3 2,2′-Azobis(2- 0.4methylpropionamide)dihydrochloride Deionized water 7.5 Charge 4Deionized water 250.0 ⁸Dry product available as Celquat ® SC-230M fromNational Starch and Chemical, Bridgewater, New Jersey.

The resulting interjacent complex solution contained 4.7%Polyquatemium-10 and 4.0% acrylamide-DADMAC copolymer. The solution hada Brookfield viscosity of 122,000 cps measured using RV spindle No. 7@10rpm at 25° C. The solution remained uniform after standing at roomtemperature for three months. A 5 wt. % aqueous solution (active polymerbasis) of the acrylamide/DADMAC copolymer-Polyquaternium-10 interjacentcomplex passed through a 100 mesh sieve (EW-59994-16, Cole-ParmerInstrument Company, Vernon Hills, Ill.) and left no insoluble polymerresidue on the screen. A 2.5 wt. % solution was also measured forturbidity on a standard laboratory turbidimeter (Model 2100AN, Loveland,Colo.) and measured less than 20 ntu.

EXAMPLE 5

A 50/25/25 w/w DADMAC/acrylamide/acrylic acid terpolymer(Polyquaternium-39) was prepared using the ingredients in Table 5 andthe polymerization procedure of example 3.

TABLE 5 Ingredient Charge (g) Charge 1 DADMAC (64.8%) 92.4 Acrylic acid31.7 Sodium Hydroxide (50%) 4.6 acrylamide (50%) 61.2 Deionized water418.3 NaEDTA 0.03 Charge 2 Sodium persulfate 0.14 Deionized water 4.2Charge 3 Deionized water 2.4 Sodium metabisulfite 0.02

The resulting polymer gel contained 19.8% polymer by weight. Theterpolymer was used to make a interjacent complex using thepolymerization method of example 3 and the ingredients listed in Table6.

TABLE 6 Ingredient Charge (g) Charge 1 Terpolymer described in Table 5(19.8%) 242.8 Charge 2 Acrylamide (50%) 60.5 DADMAC (64.8%) 46.5 NaEDTA0.03 Charge 3 Sodium persulfate 0.9 Deionized water 4.7 Charge 4Deionized water 3.9 Sodium metabisulfite 0.02 Charge 5 Deionized water390.0 Sodium metabisulfite 4.2

The resulting interjacent complex solution contained 6.3% of theterpolymer described in Table 5 and 7.9% of the acrylamide-DADMACcopolymer. The solution remained uniform after standing at roomtemperature for three months. A 5 wt. % aqueous solution (active polymerbasis) of the acrylamide/DADMAC copolymer-Polyquatemium-39 interjacentcomplex passed through a 100 mesh sieve (EW-59994-16, Cole-ParmerInstrument Company, Vernon Hills, Ill.) and left no insoluble polymerresidue on the screen. A 2.5 wt. % solution was also measured forturbidity on a standard laboratory turbidimeter (Model 2100AN, Loveland,Colo.) and measured less than 20 ntu.

EXAMPLE 6

A interjacent complex was prepared using the polymerization methoddescribed in example 2 and the ingredients in Table 7.

TABLE 7 Ingredient Charge (g) Charge 1 Guar⁹ 5.0 MEHQ⁵ 0.0016 Deionizedwater 455.2 Charge 2 Acrylamide (50%) 51.8 Acryloyloxyethyl, trimethylammonium 67.3 chloride (80.5%) NaEDTA 0.16 Charge 3 2,2′-Azobis(2- 0.25methylpropionamide)dihydrochloride⁶ Deionized water 6.0 Charge 4Deionized water 100.0 Sodium metabisulfite 1.0 ⁹WG-22 available fromPolyPro, Inc., Dalton, Georgia.

The resulting interjacent complex solution contained 0.8% guar and 11.9%acrylamide-acryloyloxyethyl, trimethyl ammonium chloride copolymer. Thesolution remained uniform after standing at room temperature for threemonths. A 5 wt. % aqueous solution (active polymer basis) of theacrylamide/AETAC copolymer-guar interjacent complex passed through a 100mesh sieve (EW-59994-16, Cole-Parmer Instrument Company, Vernon Hills,Ill.) and left no insoluble polymer residue on the screen. A 2.5 wt. %solution was also measured for turbidity on a standard laboratoryturbidimeter (Model 2100AN, Loveland, Colo.) and measured less than 20ntu.

EXAMPLE 7

A interjacent complex was prepared using the polymerization methoddescribed in example 2 and the ingredients in Table 8.

TABLE 8 Ingredient Charge (g) Charge 1 Xanthan gum¹⁰ 2.6 MEHQ 0.0016Deionized water 457.6 Charge 2 Acrylamide (50%) 25.1 Acryloyloxyethyl,trimethyl ammonium 65.7 chloride (80.5%) NaEDTA 0.04 Charge 32,2′-Azobis(2-methylpropionamide) 0.25 dihydrochloride⁶ Deionized water3.4 Charge 4 Deionized water 150.0 Sodium metabisulfite 0.5¹⁰Flo-Vis-Plus, MI Drilling Fluids, Houston, Texas.

The resulting interjacent complex solution contained 0.5% xanthan gumand 12.0% acrylamide-acryloyloxyethyl, trimethyl ammonium chloridecopolymer. The solution remained uniform after standing at roomtemperature for three months. A 5 wt. % aqueous solution (active polymerbasis) of the acrylamide/AETAC copolymer-xanthan gum interjacent complexpassed through a 100 mesh sieve (EW-59994-16, Cole-Parmer InstrumentCompany, Vernon Hills, Ill.) and left no insoluble polymer residue onthe screen. A 2.5 wt. % solution was also measured for turbidity on astandard laboratory turbidimeter (Model 2100AN, Loveland, Colo.) andmeasured less than 20 ntu.

EXAMPLES 8-14

The following physical blends of the polymers in Table 9 were preparedby adding 1:1 weight ratios of the respective polymer solutions to asuitable vessel equipped with an overhead mixer and mixing the solutionuntil uniform.

TABLE 9 Example No. Polymer 1 Polymer 2 8 Polyquaternium-7¹Polyquaternium-6¹¹ 9 Polyquaternium-11⁴ Polyquaternium-7¹ 10Polyquaternium-28⁷ AMPS-acrylic acid-acrylamide- AETAC copolymer¹² 1110% aqueous solution of Polyquaternium-7¹³ Polyquaternium-10⁸ 12Polyquaternium-39¹⁴ Polyquaternium-7¹⁵ 13 2% aqueous solution ofPolyquaternium-33¹⁶ guar 14 1% aqueous solution of Polyquaternium-33¹⁷xanthan gum ¹WSPQ7 available from WSP Chemicals & Technologies, Inc.,Ambridge, Pennsylvania. ⁴20 wt % aqueous solution available as Gafquat ®755N from International Specialty Products, Wayne, New Jersey. ⁷20 wt %aqueous solution available as Gafquat ® HS-100 from InternationalSpecialty Products, Wayne, New Jersey. ⁸Dry product available asCelquat ® SC-230M from National Starch and Chemical, Bridgewater, NewJersey. ¹¹Prepared as described in Example 1 without Polyquaternium-7being present. ¹²Prepared as described in Example 3 withoutPolyquaternium-28 being present. ¹³Prepared as described in Example 4without Polyquaternium-10 being present. ¹⁴Prepared as described inExample 5, Table 5. ¹⁵Prepared as described in Example 5, Table 6without the polymer in Table 5 being present. ¹⁶Prepared as described inExample 6 without guar being present. ¹⁷Prepared as described in Example7 without xanthan gum being present.

The solutions were allowed to stand at room temperature. After about 3to 4 weeks, all of the solutions prepared in example 8-14 had formed twovisibly distinct layers, i.e. they began to separate into two phases.

EXAMPLES 15-22

A shampoo was prepared by sequentially adding the ingredients in Table10 to a suitable container with mixing.

TABLE 10 (all entries in grams) Example No. 15 16 17 18 19 20 21 22Deionized water 67.4 67.4 67.4 67.4 67.4 67.4 67.4 67.4 Sodium laurylsulfate 17.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 (70%) Sodium laurethsulfate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Cocamidopropyl betaine 6.0 6.06.0 6.0 6.0 6.0 6.0 6.0 Coconut diethanolamide 2.5 2.5 2.5 2.5 2.5 2.52.5 2.5 Sodium PCA¹⁸ 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Interjacent complexof 2.0 example 1 Interjacent complex of 4.0 example 2 Interjacentcomplex of 4.0 example 3 Interjacent complex of 4.5 example 4Interjacent complex of 4.0 example 5 Interjacent complex of 2.0 example6 Interjacent complex of 2.0 example 7 Sodium chloride 2.0 2.0 2.0 2.02.0 2.0 2.0 2.0 ¹⁸Available from Minaloa Skin Care Products, Irvine,California.

The shampoos of examples 15-22 were used to clean human hair and wereall able to adequately cleanse the hair. However, while examples 16-22also provided excellent wet combing and dry combing properties, theshampoo of example 15 left the hair more difficult to comb due totangling and more prone to static flyaway when the hair was dry.

EXAMPLES 23-25

An oil-based hand cream was prepared using the ingredients listed inTable 11.

TABLE 11 Ingredients Example 23 (g) Example 24 (g) Example 25 (g) Skincare additive¹⁹ 2.0 2.0 2.0 Skin care additive²⁰ 2.0 2.0 2.0 Skin careadditive²¹ 4.0 4.0 4.0 Skin care additive²² 3.0 3.0 3.0 Mineral oil 2.02.0 2.0 C₁₆-C₁₈ alcohols 1.7 1.7 1.7 Lanolin 1.5 1.5 1.5 Propyleneglycol 5.0 5.0 5.0 Deionized water 78.6 78.6 78.6 Interjacent complex of2.0 example 2 Interjacent complex of 2.0 example 1 ¹⁹available as A6from Manhoko Ltd., Hong Kong, China. ²⁰available as A25 from ManhokoLtd., Hong Kong, China. ²¹available as IPM from Manhoko Ltd., Hong Kong,China. ²²available as OP from Manhoko Ltd., Hong Kong, China.

The creams of examples 23, 24 and 25 were applied to human hands. Thehands felt softer and less dry after application of the cremes inexamples 24 and 25 than with the cream of example 23.

The present invention has been described with reference to specificdetails of particular embodiments thereof. It is not intended that suchdetails be regarded as limitations upon the scope of the inventionexcept insofar as and to the extent that they are included in theaccompanying claims.

1. A composition for treating a keratin based substrate comprising acosmetically acceptable medium containing a water-soluble interjacentcomplex comprised of: (a) a water-soluble host polymer selected from thegroup consisting of water-soluble poly(meth)acrylates, water-solublepolyamides, water-soluble polyesters, water-soluble polyurethanes,water-soluble poly(vinyl amine), water-soluble poly(ethylene imine),water-soluble amine/epihalohydrin polyamines, water-solublepoly(meth)acrylamide, water-soluble (meth)acrylamide copolymers,water-soluble poly(meth)acrylic acid, water-soluble copolymers of(meth)acrylic acid, poly(diallyl dimethyl ammonium halides), copolymersof diallyl dimethyl ammonium halides, water-soluble vinyl pyrrolidone,water-soluble copolymers of vinyl pyrrolidone,poly(meth)acrylamidopropyltrimethyl ammonium halides, copolymers of(meth)acrylamidopropyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium halides, copolymers of(meth)acryloyloxyethyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, copolymersof (meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, xanthangums, sodium alginates, galactomanans, carageenan, gum arabic,hydroxyethyl cellulose, hydroxypropyl cellulose, diallyl dimethylammonium chloride graft copolymers of hydroxyethylcellulose, polymericquaternary ammonium salts of hydroxyethyl celluloses reacted with atrimethyl ammonium substituted epoxide, polymeric quaternary ammoniumsalts of hydroxyethyl celluloses reacted with lauryl dimethyl ammoniumsubstituted epoxides, a quaternary ammonium derivative of hydroxypropylguar and combinations thereof; and (b) one or more water-solublemonomers polymerized to form an intercalated polymer in the presence ofthe host polymer in (a), wherein the weight ratio of the host polymer tothe intercalated polymer is from 1:100 to 100:1, and the resultingwater-soluble interjacent complex forms a solution in water that is freeof insoluble polymer particles and maintains one uniform phase afterstanding at ambient conditions for at least three months.
 2. The keratintreating composition of claim 1 further comprising 5% to 50%, by weight,of a surfactant component selected from the group consisting of anionicsurfactants, amphoteric surfactants, cationic surfactants, nonionicsurfactants, and zwitterionic surfactants.
 3. The keratin treatingcomposition of claim 2, wherein the anionic surfactant is one or moreselected from the group consisting of ammonium lauryl sulfate, ammoniumlaureth sulfate, triethylamine lauryl sulfate, triethylamine laurethsulfate, triethanolamine lauryl sulfate, triethanolamine laurethsulfate, monoethanolamine lauryl sulfate, monoethanolamine laurethsulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate,lauric monoglyceride sodium sulfate, sodium lauryl sulfate, sodiumlaureth sulfate, potassium lauryl sulfate, potassium laureth sulfate,sodium lauryl sarcosinate, sodium lauroyl sarcosinate, lauryl sarcosine,cocoyl sarcosine, ammonium cocoyl sulfate, ammonium lauroyl sulfate,sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate,potassium lauryl sulfate, triethanolamine lauryl sulfate,triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate,monoethanolamine lauryl sulfate, sodium tridecyl benzene sulfonate,sodium dodecyl benzene sulfonate, disodium N-octadecylsulfofosuccinanrate, tetrasodiumN-(1,2-dicarboxyethyl)-N-octadecylsulfosuccinamate, diamyl ester ofsodium sulfosuccinic acid, dihexyl ester of sodium sulfosuccinic acid,and dioctyl esters of sodium sulfosuccinic acid.
 4. The keratin treatingcomposition of claim 2, wherein the amphoteric surfactant is one or moreselected from the group consisting of sodium 3-dodecyl-aminopropionate,sodium 3-dodecylaminopropane sulfonate, sodium lauryl sarcosinate, andN-alkyltaurines.
 5. The keratin treating composition of claim 2, whereinthe zwitterionic surfactant is one or more selected from the groupconsisting of coco dimethyl carboxymethyl betaine, cocoamidopropylbetaine, cocobetaine, lauryl amidopropyl betaine, oleyl betaine, lauryldimethyl carboxymethyl betaine, lauryl dimethyl alphacarboxyethylbetaine, cetyl dimethyl carboxymethyl betaine, laurylbis-(2-hydroxyethyl) carboxymethyl betaine, stearylbis-(2-hydroxypropyl) carboxymethyl betaine, oleyl dimethylgamma-carboxypropyl betaine, laurylbis-(2hydroxypropyl)alpha-carboxyethyl betaine, coco dimethylsulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, lauryldimethyl sulfoethyl betaine, lauryl bis-(2-hydroxyethyl) sulfopropylbetaine, amidobetaines, and amidosulfobetaines.
 6. The keratin treatingcomposition of claim 1 further comprising a silicone conditioning agent.7. The keratin treating composition of claim 1 further comprising anorganic water insoluble liquid selected from the group consisting ofhydrocarbon oils, fatty esters having 10 to 22 carbon atoms, andmixtures thereof.
 8. The keratin treating composition of claim 1,wherein the molecular weight of the polymer in (a) and the polymer in(b) in the interjacent complex are each at least 1,000.
 9. The keratintreating composition of claim 1, wherein the water-soluble host polymeris one or more selected from the group consisting of water-solublepoly(meth)acrylates, water-soluble polyamides, water-soluble polyesters,water-soluble polyurethanes, water-soluble poly (vinyl amine),water-soluble poly(ethylene imine), water-soluble amine/epihalohydrinpolyamines, water-soluble poly(meth)acrylamide, water-soluble(meth)acrylamide copolymers, water-soluble poly(meth)acrylic acid,water-soluble copolymers of (meth)acrylic acid, poly(diallyl dimethylammonium halides), copolymers of diallyl dimethyl ammonium halides,water-soluble vinyl pyrrolidone, water-soluble copolymers of vinylpyrrolidone, poly(meth)acrylamidopropyltrimethyl ammonium halides,copolymers of (meth)acrylamidopropyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium halides, copolymers of(meth)acryloyloxyethyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, andcopolymers of (meth)acryloyloxyethyltrimethyl ammonium methyl sulfate.10. The keratin treating composition of claim 1, wherein thewater-soluble host polymer is one or more selected from the groupconsisting of xanthan gums, sodium alginates, galactomanans, carageenan,and gum arabic.
 11. The keratin treating composition of claim 1, whereinthe host polymer is one or more selected from the group consisting ofhydroxyethyl cellulose, hydroxypropyl cellulose, diallyl dimethylammonium chloride graft copolymers of hydroxyethylcellulose, polymericquaternary ammonium salts of hydroxyethyl celluloses reacted with atrimethyl ammonium substituted epoxide, and polymeric quaternaryammonium salts of hydroxyethyl celluloses reacted with lauryl dimethylammonium substituted epoxides.
 12. The keratin treating composition ofclaim 1, wherein the water-soluble host polymer is a quaternary ammoniumderivative of hydroxypropyl guar.
 13. The keratin treating compositionof claim 1, wherein the monomers in (b) comprise a monomer mix comprisedof (i) 0 to 100 mol % of one or more cationic monomers; (ii) 0 to 100mol % of one or more anionic monomers; and (iii) 0 to 100 mol % of oneor more nonionic monomers, wherein the sum of (i), (ii), and (iii) is100 mol %.
 14. The keratin treating composition of claim 13, wherein thecationic monomer (i) is one or more selected from the group consistingof (meth)acrylamidopropyltrimethyl ammonium halides,(meth)acryloyloxyethyltrimethyl ammonium halides,poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, and diallyldimethyl ammonium halides.
 15. The keratin treating composition of claim13, wherein the anionic monomer (ii) comprises one or more sulfonic acidcontaining monomers selected from the group consisting of2-acrylamido-2-methylpropane sulfonic acid,2-methacrylamido-2-methylpropane sulfonic acid, sulfonated styrene,vinyl sulfonic acids, and allyl ether sulfonic acids.
 16. The keratintreating composition of claim 15, wherein the mol ratio of cationicmonomer (i) to sulfonic acid containing anionic monomer (ii) ranges from20:80 to 95:5.
 17. The keratin treating composition of claim 13, whereinthe anionic monomer (ii) comprises one or more carboxylic acidcontaining monomers selected from the group consisting of (meth)acrylicacid, maleic acid, itaconic acid, N-(meth)acrylamidopropyl,N,N-dimethyl,amino acetic acid, N-(meth)acryloyloxyethyl,N,N-dimethyl,amino acetic acid, N-(meth)acryloyloxyethyl,N,N-dimethyl,amino acetic acid, crotonic acid, (meth)acrylamidoglycolicacid, and 2-(meth)acrylamido-2-methylbutanoic acid.
 18. The keratintreating composition of claim 17, wherein the mol ratio of cationicmonomer (i) to carboxylic acid containing anionic monomer (ii) rangesfrom 20:80 to 95:5.
 19. The keratin treating composition of claim 13,wherein the nonionic monomer (iii) comprises one or more selected fromthe group consisting of C₁-C₂₂ straight or branched chain alkyl or aryl(meth)acrylates, C₁-C₂₂ straight or branched chain N-alkyl or aryl(meth)acrylamide, (meth)acrylamide, N-methyl(meth)acrylamide,N-vinylpyrrolidone, vinyl acetate, ethoxylated (meth)acrylates,propoxylated (meth)acrylates, hydroxy functional (meth)acrylates,N,N-dimethyl(meth)acrylamide, styrene, C₁-C₂₂ straight or branched chainalkyl allyl ethers, and C₁-C₂₂ aryl allyl ethers.
 20. The keratintreating composition of claim 13, wherein the monomer mix in (b) furthercomprises (iv) a branching quantity of one or more monomers that havetwo or more sites of reactive unsaturation.
 21. The keratin treatingcomposition of claim 20, wherein the monomers having two or more sitesof reactive unsaturation (iv) are selected from the group consisting ofethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate,tetraethylene glycol di(meth)acrylate, 1,3-butylene glycoldi(meth)acrylate, trimethylolpropane tri(meth)acrylate, 1,4-butanedioldi(meth)acrylate, neopentyl glycol di(meth)acrylate, 1,6-hexanedioldi(meth)acrylate, pentaerythritol di(meth)acrylate, pentaerythritoltri(meth)acrylate, pentaerythritol tetra(meth)acrylate, glyceroldi(meth)acrylate, glycerol allyloxy di(meth)acrylate,1,1,1-tris(hydroxymethyl)ethane di(meth)acrylate,1,1,1-tris(hydroxymethyl)ethane tri(meth)acrylate,1,1,1-tris(hydroxymethyl)propane di(meth)acrylate,1,1,1-tris(hydroxymethyl)propane tri(meth)acrylate, triallyl cyanurate,triallyl isocyanurate, triallyl trimellitate, diallyl phthalate, diallylterephthalte, divinyl benzene, triallylamine, and methylenebis (meth)acrylamide.
 22. The keratin treating composition of claim 20, whereinthe monomers having two or more sites of reactive unsaturation arepresent at 0.0001 to 0.1 mol % based on the total number of mols of (i),(ii), and (iii).
 23. The keratin treating composition of claim 1,wherein the reduced viscosity of the interjacent complex, as determinedin a Ubbelhhde Capillary Viscometer at 0.05% by weight concentration ofpolymer in 1M NaCl solution, at 30° C., pH 7 ranges from 0.1 to 20 dl/g.24. The keratin treating composition of claim 1, wherein the interjacentcomplex is prepared by solution polymerization.
 25. The keratin treatingcomposition of claim 1, wherein the interjacent complex is prepared as awater-in-oil emulsion.
 26. The keratin treating composition of claim 1,wherein the cosmetically acceptable medium is selected from the groupconsisting of an aftershave, a sunscreen, a hand lotion, a liquid soap,a bar soap, a bath oil bar, a shaving cream, a dishwashing liquid, aconditioner, a hair dye, a permanent wave, a hair relaxer, a hairbleach, a hair setting composition, a styling gel, or a shower gel. 27.The keratin treating composition of claim 1, wherein the keratin basedsubstrate is selected from human hair, human skin, and human nails.